Question

5. Write the electronic configuration of the following atoms and the valency from the
arrangement of the electrons.
(a) Sodium
(b) Phosphorus (c) Sulphur
(d) Argon
(e) Zinc
(f) Krypton​

Answer 1

Answer:

Explanation:

electronic configuration

a. SODIUM (Na) At no. 11

configuration-KSHELL   L Shell M Shell   nN SHELL

                          2,8,1

VALENCY-1 (Lastelectron)

b  P- atomic no-15

conf...2,8,5 valency 5

c.  S  Atomic no 16

conf... 2,8,6  valency 6

d.  Ar  at.no. 18

conf ..2,8,8  valency 8

e.  Zn    at.no. 30

conf 2,8,18,2   valency 2,

f Kr   at.no 36

conf...2,8,18,8  valency 8