Question

The relationship between Valency electrons and Valency of Na and Al

Answer 1

Explanation:

✪ Atomic number of Sodium, Na = 11

✪ Electronic gas configuration of Na

= K  L  M

  2  8   1

∴ Number of valence electrons of Sodium, Na = 1

Valency of Sodium, Na = 1

(Because Sodium, Na tends to loose one electron in order to become an octet)

We observe that,

Number of Valence electrons of Na = Valency of Na

✨ Similarly,

✪ Atomic number of Aluminium, Al = 13

✪ Electronic configuration of Aluminium, Al

= K  L  M

  2  8  3

∴ Number of valence electrons of Aluminium, A = 3

(Because Aluminium, Al tends to loose one electron in order to become an octet)

We observe that,

Number of Valence electrons of Al = Valency of Al

Hope you got that.

Thank You.