Question

i) Identify the halogens in the modern periodic table from the given electronic configuration
a) 2,8,7 :: 2,8,2 :: 2,8,2
b) 2,8,7 :: 2,7 :: 2,8,18,7
c) 2,8,1 :: 2,8,1 :: 2,8,1
d) 2,8,6 :: 2,6,:: 2,8,5

Answer 1

Answer:

option b is the right answer

Explanation:

because halogen are the element which constitute the group 17 of the periodic table.

in your option b it include. cl, F, Br