Question

2) Name the following elements from the description.
a) The atom having two shells, both of which are completely filled.
b) The atom with three shells, with 2 valence electrons.
c) Placed in group 1, its atom having two shells.
d) placed in group 17, and period 3.
e) A metal with valency 3. placed in group number 13 and period 3.​

Answer 1

a) Neon

b) Sulphur

C) Lithium

d) Chlorine

e) Alominium