Question

Atomic number of an element Y is 16.

a. how many electrons are present in L shell of Y?
b. what will be the molecular formula of the compound formed if Y combines with the following elements?
i. Hydrogen ii. Aluminium

Answer 1

a. 2
b. I don't know that
but element is Sulphur

Answer 2

Electronic configuration becomes 2,8,6.

a)L shell is the second shell so 8 electrons.

b) With hydrogen-

H2S

With aluminium-

Al2S3

(The numbers writtten after symbol are meant to be written as subscript of the unit and not just beside them.)

thanks:)