Question

Which similarity do you find in electronic configuration of elements in group 1.std 10th.

Answer 1

Answer:

all 1st group elements has common valency configuration ns1

Explanation:

1st group elements are also called alkalimetals, have only one electron in its valecy shell and this configuration is Li = [He]2s1, Na= [Ne]3s1, K=[Ar] 4s1 Rb= [Kr]5s1, Cs = [Xe] 6s1, so general configuration of these elements is ns1.