Question

The element A in group 16 has 3 shells
a) write the electronic configuration
b) find the valency
c) will it make +ve or -ve iron?
d) if it combines with atomic number 11. what is the chemical formula of the compound formed?​

Answer 1

Answer:

a) 2,8,6

b) 2

C) -ve ion(negative ion)

d)Na2O