Question

Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table.Compare them with respect to:

a)the number of valence electrons in their atoms

b)their valencies

c)metallic character

d)the size of their atoms

e)the formula of their oxides

f)the formula of their chlorides

Answer 1

metal of group 1 have 1 valence electrons and group 2 metal have 2 valence electron , same with valency respectively
metallic character of group is high comparitively group 2
metal of group 1 have greater size than group 2
R2o for group 1 and Ro for group 2
RCL2 for group 1 and RCL for group 2

Answer 2

hope you understand my written