It is umlikely that anyone has ever reacted the metal with water. Potassium belongs to group 1 and chlorine belongs to group 2. 75.2 % B. A sample of pure lithium carbonate contains 18.8 % lithium by mass. 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. Also the reactivity in metals increases on moving down the group while that of non-metals decreases on moving down the group. Cs. Group I: They are soft metals that tarnish quickly in air. a. Li b. Na c. K d. Rb e. Cs. Their melting points decrease as we go down the group. no reaction. 2. an oxide is formed with the general formula MO. Quiz 21: Chemistry of the Main-Group Metals; Which Element Reacts Most Vigorously with Water? Cloudflare Ray ID: 5f9994c6793d0323 In each case, a solution of the metal hydroxide is produced together with hydrogen gas. Which element reacts most vigorously with water? The melting points are all low for metals, as are the densities of these elements. Your IP: 18.104.22.168 New questions in Chemistry. 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. Francium is very scarce and expensive. Explore answers and all related questions . Looking for something else? • As far as the elements are placed in periodic table, the more violently they reacts to each other. General. (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. Hence chlorine and potassium will react more violently. There is a distinction between "activity" (as in the activity series) and "reactivity." It gradually reacts and disappears, forming a colourless solution of lithium hydroxide. D. low melting point and reacts slowly with water. However, given that all the other Group 1 elements react to form colourless solutions of the hydroxide and hydrogen gas (H2), it would be strange if francium not do the same. All of these metals react vigorously or even explosively with cold water. You may need to download version 2.0 now from the Chrome Web Store. Related questions. Question 33. Answer. Another way to prevent getting this page in the future is to use Privacy Pass. The Group 1 metals get more reactive as we go down the group. What happens when the elements in group 1 react with water? 9.40 % C. 37.6 % D. 18.8 % Rb. Which group 1 element reacts the most vigorously? Which reacts the most vigorously? Q 34. C. low melting point and reacts vigorously with water. 1. no reaction. Cloudflare Ray ID: 5f99948b8e5c3ae5 Find more answers. 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. This page looks at the reactions of the Group 1 elements - lithium, sodium, potassium, rubidium and caesium - with water. a. Li b. Na c. K d. Rb e. Cs Which element in the group exhibits slightly different chemistry from the others? 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. Which group 1 element reacts the most vigorously? K. Li. 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! When a group 7 element reacts with a group 1 element,what is the effect on the group 1 atom See answer WarriorConcerto WarriorConcerto A metal halide is formed, like chloride, bromide, and fluoride. It is likely to be a metal which has a A. high melting point and reacts slowly with water. You may need to download version 2.0 now from the Chrome Web Store. Cesium metal reacts most vigorously with water, followed by rubidium and potassium. Rate! • Multiple Choice . Activity vs reactivity …. an oxide is formed with the general formula M2O. Group 1 elements are called the alkali metals. All of Group 1 elements —lithium, sodium, potassium, rubidium and cesium react vigorously or even explosively with cold water. • The Facts. • In each reaction, hydrogen gas is given off and the metal hydroxide is produced. Another way to prevent getting this page in the future is to use Privacy Pass. A. noble gases B. alkali metals C. alkaline earth metals D. halogens. B. high melting point and reacts vigorously with water. Your IP: 22.214.171.124 A)Al B)Li C)Ba D)Mg E)Cs. Thanks Comments; Report Log in to add a comment Looking for something else? Which group of elements reacts violently with water? Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Lithium's density is only about half that of water so it floats on the surface, gently fizzing and giving off hydrogen. This reactivity increases as we move down in a group. Alkali metals react vigorously with water to form hydroxides and dihydrogen. 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. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. 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. Group 1: The Alkali Metals. A. What happens when the elements in group 1 react with oxygen? hydrogen gas is released. 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. All the alkali metals react vigorously with cold water. Na It uses these reactions to explore the trend in reactivity in Group 1. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample? Performance & security by Cloudflare, Please complete the security check to access. Performance & security by Cloudflare, Please complete the security check to access.