For the most part, Group 14 elements do not react with water. Q 34. They include lithium, sodium and potassium, which all react vigorously with air and water. फलतः चित्रकला विभिन्न क्षेत्रीय रूपों में भी विकसित हुई. I an oxide is formed (M_2O) an oxide is formed (MO) no reaction Which reacts the most vigorously? sorry, didn't mean to post twice lol computer glitched XD Help. hydrogen gas is released. Quiz 21: Chemistry of the Main-Group Metals; Which Element Reacts Most Vigorously with Water? Find more answers. Answer the following questions about the characteristics of the elements in Group 2 (the alkaline How do they react with iodine? Na It exists in gaseous form at room temperature and even reacts with glass. In each case, a metal halide is formed (fluoride, chloride, bromide or iodide). This reaction produces a metal hydroxide and hydrogen gas. […], Q.भारतीय संविधान को अर्ध संघीय क्यूँ कहा जाता है ? No reaction How do they react with oxygen? How do they react with iodine? Group 1The first vertical column or group, Group 1, the alkali metals, has the most elements in it (7, if hydrogen is included). How do they react with oxygen? B. high melting point and reacts vigorously with water. • New questions in Chemistry. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with common acids. Alkali metal, any of the six elements of Group 1 (Ia) of the periodic table—lithium, sodium, potassium, rubidium, cesium, and francium. Feb 5, 2014 . Which reacts the most vigorously? How do they react with iodine? ध्वनि तरंगे निर्वात में नहीं चल सकती है. a salt is formed (MI_2) a salt is formed (MI) no reaction How do they react with water? Beryllium : Beryllium is a chemical element with the symbol Be and atomic number 4. So it is almost impossible to store it in pure form.and caesium is the most reactive metal. The Group 1 elements in the periodic table are known as the alkali metals. Answer the following about the characteristics of the elements in Group 1(the alkali metals). Which group of elements are found as diatomic molecules? Group 14: Carbon Family. Rb. II Alkaline earth metals react less vigorously with water than do the alkali metals. The Group 1 elements in the periodic table are known as the alkali metals. 6 years ago . Show transcribed image text. Which group 1 element reacts the most vigorously? Expert Answer 100% (45 ratings) Previous question Next question Transcribed Image Text from this Question. • Chemistry. In their standard states, Group IA elements are solid (ignore hydrogen, its a total oddball in the table) and known as alkali metals Na(s). Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Oxygen reacts rapidly with Group 1 elements. It forms an ionic bond when the anions and cations form a 3D fixed lattice. The group 1 elements react with oxygen from the air to make metal oxides. What happens when the elements in group 1 react with oxygen? They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution. बिहार दरोगा मुख्य परीक्षा के लिए महत्वपूर्ण टॉपिक, CSO ने GDPके प्रथम अग्रिम अनुमान जारी किये. The alkali metals (Li, Na, K, Rb, Cs, and Fr) are the most reactive metals in the periodic table - they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen. A: Chlorine and lithium B:Chlorine and potassium C:iodine and lithium D:iodine and potassium my answer is B 2. which statement about electronegativty is correct. All of the group one elements (sodium & potassium etc) and most of the group two elements (calcium etc) will react vigorously and spontaneously in hot water. Quiz 21: Chemistry of the Main-Group Metals; Which Element Reacts Most Vigorously with Water? All of Group 1 elements—lithium, sodium, potassium, rubidium and cesium react vigorously or even explosively with cold water. K. Li. Secondly, which group 1 element reacts the most vigorously? Feb 5, 2014 . Related questions. Which two elements react vigorously with each other? Fluorine is the most reactive non radioactive element on periodic table. DrBob222. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Beryllium : Beryllium is a chemical element with the symbol Be and atomic number 4. Answer the following questions about the characteristics of the elements in Group 2 (the alkaline earths). You may need to download version 2.0 now from the Chrome Web Store. Feb 5, 2014 . The Facts. This forms a white oxide, which covers the surface. Secondly, which group 1 element reacts the most vigorously? Group 1 elements (the alkali metals) all have one electron i n their outer shell. The group 3A elements are all metals. Relevance. Sections below cover the trends in atomic radius, first ionization energy, electronegativity, melting and boiling points, and density. B. chlorine and potassium. It is likely to be a metal which has a A. high melting point and reacts slowly with water. How do they react with water? HCl HI HBr HF. The reactivity of the alkali metals increases down the group. an oxide is formed with the general formula MO. All of the group one elements (sodium & potassium etc) and most of the group two elements (calcium etc) will react vigorously and spontaneously in hot water. Francium is element number 87 on the periodic table. (Total 1 mark) 6. Rubidium is an element in the same group of the periodic table as lithium and sodium. All the alkali metals react vigorously with halogens to produce salts, the most industrially important of which are NaCl and KCl. परिक्षण कीजिए प्रस्तावना भारतीय संविधान मेँ संघीय सरकार का प्रावधान है। एकल सरकार मेँ सभी शक्तियाँ केंद्र सरकार मेँ निहित होती हैं और राज्य सरकारें केंद्र सरकार से अपने अधिकार प्राप्त करती हैं। संघीय सरकार में संविधान के माध्यम से सभी शक्तियाँ केंद्र सरकार (राष्ट्रीय […], केन्द्रीय सांख्यिकी कार्यालय (CSO) ने हाल ही में 2019-20 के लिए सकल घरेलु उत्पाद के प्रथम अग्रिम अनुमान जारी किये। CSO के अनुमान के अनुसार मौजूदा वित्त वर्ष में भारत की जीडीपी विकास दर 5% रहने का अनुमान है। यह अनुमान पिछले दो तिमाहियों पर आधारित है। 2018-19 में जीडीपी विकास दर 6.8% रही थी। […], भारत में जनगणना और राष्ट्रीय जनसंख्या रजिस्टर (एनपीआर) को अपडेट करने की प्रक्रिया शुरू होने जा रही है, जिसमें प्रत्येक व्यक्ति का विवरण होगा। जनगणना और एनपीआर में बहुत ज्यादा अंतर नहीं है। आइए समझते हैं दोनों की विशेषताएं, मकसद और अंतर क्या है और किस कानून के तहत ये प्रक्रियाएं पूरी की जाती हैं। […], पटना कलम मुगल साम्राज्य के पतन के काल में शाही दरबार में कलाकारों को प्रशय ना मिलने के कारण इनका पलायन अन्य क्षेत्रों में होने लगा था. The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group. Salts can consist of hydrogen. All of Group 1 elements —lithium, sodium, potassium, rubidium and cesium react vigorously or even explosively with cold water. Q 35. B. high melting point and reacts vigorously with water. Which of the following metals is expected to have the fastest reaction with water? Those are less reactive than alkali metals. In each case, the aqueous metal hydroxide and hydrogen gas are produced, as shown: $2X (s) + 2H_2O (l) \rightarrow 2XOH (aq) + H_2 (g)$ where $$X$$ is any Group 1 metal. A. noble gases B. alkali metals C. alkaline earth metals D. halogens. इन्हीं में से एक पटना कलम या पटना शैली भी है . What happens when the elements in group 1 react with oxygen? Bubbles of hydrogen gas are given off, and a white precipitate (of calcium hydroxide) is formed, together with an alkaline solution (also of calcium hydroxide - calcium hydroxide is slightly soluble). The table shows observations when lithium, sodium and potassium are added to water. Calcium and magnesium are in Group 2, known as the alkaline earth metals. These elements include lithium, potassium, calcium, sodium, magnesium, aluminum, zinc, iron and lead. Calcium, for example, reacts fairly vigorously with cold water in an exothermic reaction. Which element in the group is the most metallic in character? बिहार दरोगा मुख्य परीक्षा के लिए महत्वपूर्ण टॉपिक बिहार दरोगा मुख्य परीक्षा से पूर्व निम्न महत्वपूर्ण टॉपिक को अवश्य पढ़े— इतिहास – इतिहास विषय से मुख्य परीक्षा में लगभग 20 प्रश्न पूछे जाते है.ये सभी प्रश्न विगत वर्षों में विभिन्न प्रतियोगी परीक्षाओं में पूछे गए प्रश्न रहते है. Reactions with dilute hydrochloric acid. Cloudflare Ray ID: 61037ece78804077 Rb Cs K Li Na 1 See answer Answer 2. hudebya +1 cliffffy4h and 1 other learned from this answer Answer: The answer is lithium(LI) 0.0 0 votes 0 votes Rate! The principal combustion product is the most stable product with respect to the reactants. an oxide is formed with the general formula MO. Cs. How do they react with oxygen? A)Al B)Li C)Ba D)Mg E)Cs. The table summarises the names and formulae for the metal halides formed by the reaction of group 1 elements with group 7 elements. Because Li is the strongest reducing agent of the alkali metals, it reacts most quickly with water of the alkali metals. The group 7 elements react vigorously with group 1 elements such as sodium and potassium. Answer the following questions about the characteristics of the elements in Group 2 (the alkaline earths). Cs. Reactions with Group 1 Elements. All of these metals react vigorously or even explosively with cold water. It is likely to be a metal which has a. and WHY? Ok so, the answer is B...but why? One interesting consequence of this is that tin (Sn) is often sprayed as a protective layer on iron cans to prevent the can from corroding. C. low melting point and reacts vigorously with water. Hence chlorine and potassium will react more violently. Ca Sr Be Ba. 1 $\endgroup$ $\begingroup$ Welcome to Chemistry.SE! Therefore, Cs will be most likely to react. Cl2 and Br2 are also in the same group (group 7). K. Li. the trend in the non-metal section is that element become more reactive as you move UP a group. How do they react with water? B. high melting point and reacts vigorously with water. A. (Potassium actually is the more reactive of the two) The reason is that potassium and sodium both lie in Group 1 of the periodic table, which contains all the alkali metals. They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution. Q 35. Ba. Who will win the fight and how it will go is determined by the number of protons in … Which of the hydrogen halide acids is used to etch glass? Which group of elements reacts violently with water? It is likely to be a metal which has a. alkaline earth metals noble gases alkali metals halogens. These group 1 elements only have one electron which is very easily lost to form a cation. Metals to the right of hydrogen in the electrochemical series, such as copper, silver and gold, do not react. Which element in the group is the most metallic in character? 75.2 % B. A. high melting point and reacts slowly with water. It is primarily used as a hardening agent in alloys, most notably beryllium copper. Sodium (N a) C. Potassium (K) D. Rubidium (R b) Answer . A: Electronegativity decrease across a period. 1 $\endgroup$ $\begingroup$ Welcome to Chemistry.SE! surendr, Anand Singh Thakur: Thank U very much dear, हिंदी - आईएएस , संघ लोक सेवा आयोग व विभिन्न राज्य लोक सेवाओं की तैयारी करने वाले अभ्यर्थियों को हिंदी में सामान्य अध्ययन व समसामयिक पर अध्ययन सामग्री प्रदान करता है |. Group 2 The Alkaline Earth Metals. B. high melting point and reacts vigorously with water. Na share | improve this answer | follow | answered Jun 17 '16 at 4:09. user24511 user24511. Which Element In The Group Exhibits Slightly Different Chemistry From The Others? Which reacts the most vigorously? Favorite Answer. Looking for something else? Which element reacts most vigorously with water? 0 0; DrBob222. (A) Li (B) K (C) Rb (D) Na. Group 1 Group 2 Group 3-12 Group 15 Group 16 Group 17 Group 18 . Lv 7. hydrogen gas is released oxygen is released How do they react with oxygen? Rate! Which element in the group is the most metallic in character? C. iodine and lithium. Group 1 and group 7 elements doesn't react together. K. Li. I think that it helps to imagine reactions as sort of a "fight" between elements over electrons. तिरुमूर्ति को किस वैश्विक संगठन के लिए भारत का अगला स्थायी प्रतिनिधि नियुक्त किया गया है? 1. 9.40 % C. 37.6 % D. 18.8 % General. Which Reacts The Most Vigorously? no reaction. Help. Group 1: The Alkali Metals. Find more answers. A)Li B)K C)Cs D)Na E)Rb. Rubidium is an element in the same group of the periodic table as lithium and sodium. Rubidium is an element in the same group of the periodic table as lithium and sodium. Potassium belongs to group 1 and chlorine belongs to group 2. – संयुक्त राष्ट्र नेशनल काउंसिल फॉर साइंस […], राष्ट्रवाद जवाहर लाल नेहरू आधुनिक भारत के सर्वाधिक प्रभावशाली व्यक्तियों में से एक थे। नेहरू ने भारत की सामाजिक-आर्थिक तथा राजनीतिक चिंतन प्रक्रिया एवं कार्यक्रमों को गहरे रूप में प्रभावित किया। ‘गहन राष्ट्रवाद’ नेहरू के उस वैचारिक दृष्टिकोण का अभिन्न अंग था, जो राष्ट्रीय आंदोलन के मंथन से उत्पन्न हुआ था। प्रखर अंतरराष्ट्रीयतावादी होने के […], महत्वपूर्ण तथ्य ध्वनि की गति ठोस में सर्वाधिक होती है जबकि गैसों में न्यूनतम होती है. It uses these reactions to explore the trend in reactivity in Group 1. सामान्य ताप व दाब पर वायु में ध्वनि का वेग लगभग 332 मीटर प्रति सेकंड होता है. The Facts. Pieces of it explode in water with increasing intensity going down the group. Which element reacts most vigorously with water? Fluorine is the most reactive non radioactive element on periodic table. All of these metals react vigorously or even explosively with cold water. (Total 1 mark) 6. Thanks Comments; Report Log in to add a comment Looking for something else? New questions in Chemistry. All the alkali metals react with water, with the heavier alkali metals reacting more vigorously than the lighter ones. Atoms of group 1 elements all have one electron in their outer shell. an oxide is formed with the general formula M2O. Performance & security by Cloudflare, Please complete the security check to access. They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution. How do they react with iodine? sorry, didn't mean to post twice lol computer glitched XD Help. All Rights Reserved. from Wikipedia. It is primarily used as a hardening agent in alloys, most notably beryllium copper. Caesium, the fifth alkali metal, is the most reactive of all the metals. Try be a little more specific next time. A. Which group 1 element reacts the most vigorously? So it is almost impossible to store it in pure form.and caesium is the most reactive metal. How do they react with water? General. This means that the alkali metals all have similar chemical properties. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample? An oxide is formed (M_2 O) an oxide is formed (MO) Which reacts the most vigorously? Any element in the first column (Group 1) of the periodic table will react violently with water. Strontium and barium have reactivities similar to lithium in Group 1 of the Periodic Table. – 15% अल्पकालिक फसली ऋण की सीमा क्या है, जिसके लिए प्रतिवर्ष Interest Subvention Scheme के तहत दो प्रतिशत प्रतिवर्ष का उपदान प्रदान दिया जाता है? no reaction. a salt is formed (MI_2) a salt is formed (MI) no reaction How do they react with water? Question 33. Related questions. Figure: An empty tin can. 2. Reactions with dilute hydrochloric acid Each metal reacts with dilute hydrochloric acid, producing bubbles of hydrogen gas and a colorless solution of the metal chloride: A bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal. (Zeff is lower). A sample of pure lithium carbonate contains 18.8 % lithium by mass. Cesium reacts most vigorously with water because it is an alkali metal or a Group I element. Flame tests are used to identify alkali metal ions in compounds. A. Lithium (L i) B. Please enable Cookies and reload the page. a salt is formed (MBr_2) a salt is formed (MBr) no reaction How do they react with water? Answer. All the metals react with dilute hydrochloric acid to give bubbles of hydrogen and a colourless solution of the metal chloride. As far as the elements are placed in periodic table, the more violently they reacts to each other. As they are in the same group, they have similar chemical properties and will react with substances (including water) in a similar way. Answer the following questions about the characteristics of the elements in Group 2 (the alkaline earths). How do they react with bromine? halogens. Which element in the . Copyright © 2018 IasHindi. A salt is formed MBr C. No reaction How do they react with water? Which reacts the most vigorously? Which reacts the most vigorously? Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. no reaction. Rate! What happens when the elements in group 1 react with water? It exists in gaseous form at room temperature and even reacts with glass. Looking for something else? D. iodine and potassium. I'll assume your talking about a vigorous reaction and not just an oxidation that most metals will undergo in water. They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution. In each case, a solution of the metal hydroxide is produced together with hydrogen gas. Which of the following metals is expected to have the fastest reaction with water? C. low melting point and reacts vigorously with water. Click hereto get an answer to your question ️ Alkali metal (M, group 1 ) react with water to form an aqueous alkali metal hydroxide (MOH) and hydrogen gas as shown by the general equation below: 2M(s) + 2H2O → 2MOH(aq) + H2(g) Which element would react most rapidly with water? Q 34. What happens when the elements in group 1 react with water? 1 0. The Group 1 elements in the periodic table are known as the alkali metals. This page looks at the reactions of the Group 1 elements - lithium, sodium, potassium, rubidium and caesium - with water. Multiple Choice . Notice that the reactivity of these metals increases going down the group. Multiple Choice . Group 1 Group 2 Group 3-12 Group 15 Group 16 Group 17 Group 18 . AIEEE 2012: Which one of the following will react most vigorously with water? Explore answers and all related questions . Thanks Comments; Report Log in to add a comment Looking for something else? Feb 5, 2014 . Explore answers and all related questions . The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids). (Total 1 mark) 6. Answer Save. no reaction. A. chlorine and lithium. hydrogen gas is released oxygen is released How do they react with oxygen? How do they react with oxygen? अतः आप इतिहास की तैयारी के लिए […], क्षेत्रीय व्यापक आर्थिक भागीदारी (RCEP) से भारत के बाहर निकलने के कारण तथा इससे आने वाली चुनौतियों का विश्लेषण कीजिए भूमिका क्षेत्रीय व्यापक आर्थिक साझेदारी (RCEP) एक व्यापक क्षेत्रीय आर्थिक समझौता है। इसका उद्देश्य आसियान और इसके मुक्त व्यापार समझौते (FTA) के भागीदार सदस्यों के बीच व्यापार नियमों को उदार एवं सरल बनाना है।समझौते के […], CURRENT AFFAIRS APRIL 2020 भारतीय रिज़र्व बैंक की अधिसूचना के अनुसार, कॉर्पोरेट बॉन्ड में विदेशी पोर्टफोलियो निवेशकों (FPI) के निवेश की नई सीमा क्या है? Group I: Group I or IA (or Group 1) on the periodic table is known as the alkali metals. Group 2 The Alkaline Earth Metals. New questions in Chemistry. How do they react with oxygen? All of the elements in group 2 react vigorously with Oxygen, the product of which is an ionic oxide. Group 1 alkali metals react with water vigorously and sometimes explosively. Answer the following questions about the characteristics of the elements in Group 2 (the alkaline How do they react with iodine? This page discusses the trends in some atomic and physical properties of the Group 1 elements - lithium, sodium, potassium, rubidium and cesium. Rubidium is an element in the same group of the periodic table as lithium and sodium. A. an oxide is formed M2O B. an oxide is formed MO C. No reaction Which reacts the most vigorously? hydrogen gas is released. The reactivity of the alkali metals increases down the group. Subsequently, one may also ask, which element in group 2 is most metallic in character? In each case, a solution of the metal hydroxide is produced together with hydrogen gas. How do they react with water? Feb 5, 2014 . Another way to prevent getting this page in the future is to use Privacy Pass. How Do They React With Water? The Group 1 elements in the periodic table are known as the alkali metals. Feb 5, 2014 . (Potassium actually is the more reactive of the two) The reason is that potassium and sodium both lie in Group 1 of the periodic table, which contains all the alkali metals. Help. A)Al B)Li C)Ba D)Mg E)Cs. Hydrogen- a group 1 element, reacts really well with fluorine- a group 7 element. म्यूजिक कंसर्ट्स के लिए बनी हॉल की दीवारों को ध्वनि का अवशोषण करना चाहिए. See your other post. Check Answer and Solution for above Chemistr 0 0 501; Stacy. hydrogen gas is released no reaction How do they react with oxygen? For example, Magnesium reacts with Oxygen to form Magnesium Oxide the formula for which is: 2Mg (s) + O 2 (g) 2MgO (s) This is a redox reaction. It is likely to be a metal which has a A. high melting point and reacts slowly with water. Steel cans are made of tinplate (tin-coated steel) or of tin-free steel. How do they react with iodine? They include lithium, sodium and potassium, which all react vigorously with water to produce an alkaline solution. share | improve this answer | follow | answered Jun 17 '16 at 4:09. user24511 user24511. • Joe. They are the most reactive metals on the periodic table. Reginald. III. 1 decade ago. Group 1 elements (the alkali metals) all have one electron i n their outer shell. Which two elements react most vigorously with each other? Your IP: 185.2.4.95 How Do They React With Oxygen? Subsequently, one may also ask, which element in group 2 is most metallic in character? The general formula for this reaction is MO (where M is the group 2 element). Question 33. This problem has been solved! This page discusses the reactions of the Group 2 elements (beryllium, magnesium, calcium, strontium and barium) with common acids. The reason is that potassium and sodium both lie in Group 1 of the periodic table, which contains all the alkali metals. – 3 लाख रुपये […], 2020 तक, किस राज्य ने महात्मा गांधी राष्ट्रीय ग्रामीण रोजगार गारंटी योजना (MGNREGS) के तहत सबसे ज्यादा श्रमिकों को रोजगार प्रदान किया है – छत्तीसगढ़ हाल ही में सुर्ख़ियों में रहे टी.एस. An oxide is formed (M_2 O) an oxide is formed (MO) Which reacts the most vigorously? All alkali metal oxides form basic solutions when dissolved in water. A. hydrogen gas is released B. C. low melting point and reacts vigorously with water. (Total 1 mark) 6. Water: All of the group 2 elements form hydroxides when reacted … Which alkaline earth metal reacts the most vigorously with water at room temperature? Which element would react most rapidly with water? As they are in the same group, they have similar chemical properties and will react with substances (including water) in a similar way. In each case, the aqueous metal hydroxide and hydrogen gas are produced, as shown: (1) 2 X (s) + 2 H 2 O (l) → 2 X O H (a q) + H 2 (g) where X is any Group 1 metal. Rb. Metals to the left of hydrogen in the electrochemical series react with hydrochloric acid. A sample of Chlorine occupies 8.50 L at 80.0 C and 740 mm Hg. How do they react with Bromine? Which group 1 element reacts the most vigorously? This page looks at the reactions of the Group 1 elements - lithium, sodium, potassium, rubidium and caesium - with water. What group of elements are the most reactive metals? As a result, group I elements will always react more vigorously with water than group II will. 1 Answer. A bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal. The Group 1 elements in the periodic table are known as the alkali metals. Rb Cs K Li Na 1 See answer Answer 2. hudebya +1 cliffffy4h and 1 other learned from this answer Answer: The answer is lithium(LI) 0.0 0 votes 0 votes Rate! A)Li B)K C)Cs D)Na E)Rb. HF. The outer e- is lost very easily. You're right; the best answer is B. Chlorine atoms are smaller than iodine atoms and. I would look in a text for periodic trends and find my answer there. IV. Looking for something else? The further left an element is on the periodic table, the more reactive it is with water. A salt is formed MBr2 B. See the answer. Feb 5, 2014 . If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Which group 1 element reacts the most vigorously? C. low melting point and reacts vigorously with water. For example, with careful control of oxygen, the oxide M 2 O (where M represents any alkali metal) can be formed with any of the alkali metals. Alkali metals need to be stored under oil to prevent them reacting with the oxygen and water vapor in the air. Group 1 and 17. Also the reactivity in metals increases on moving down the group while that of non-metals decreases on moving down the group. Lithium sodium and potassium all react vigorously with water. A. high melting point and reacts slowly with water. At room temperature, oxygen reacts with the surface of the metal. 1. It uses these reactions to explore the trend in reactivity in Group 1. 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