Question

The third shell of an atom x has 6 electrons
a) Write the subshell electronic configuration ?
b) What will the normal valency of x?​

Answer 1

Answer:

KLM

286

(a) Since, it has 6 valence electrons, it belongs to group no. 16.

(b) It has 3 Valence shells, so it belongs to period no 3.

(c) The number of valence electron is 6.

(d) The valency of E is 2 because it requires 2 electrons to achieve its stability .

(e) It is a non-metal.

Answer 2

a) The subshell electronic configuration is 2, 8, 6.

b) The normal valency of x is 2.

Explanation:

• The first shell, i.e. K-shell can accommodate only 2 electrons.
• The second shell, i.e. L-shell can accommodate a maximum of 8 electrons.
• It is given that the third shell, i.e. M-shell has 6 electrons.
• Therefore, the subshell electronic configuration of the atom x will be 2, 8, 6.
• The third shell requires 2 more electrons to complete its octet.
• Therefore, the normal valency of the atom x is 2.