Question

Atomic number of an Elementy
18 find out
a) Group and period of the
element
b) Write any two character.
Istin of
block to which
this Clement belongs

Answer 1

Answer:

18 - Argon(Ar)

period - 3

group number - 18

mass number - 39.9

argon is non-metal

Answer 2

I don't know but I guess b) write any two character.Istin of

block to wich this Clement belongs