Question

'the atomic number of 'silicon' is 14' .from this write the electron configuration of the element and it's valency state​

Answer 1

Answer:

1s²,2s²,2p⁶,3s²,3p²

Explanation:

We know that s orbital contains maximum 2 electrons and p contains maximum 6 electrons. s-orbitals filled by electron first then p-orbitals. According to this , option A should be right.

Mark me as brainliest....

Answer 2

The atomic number of 'silicon' is 14' and electronic configuration of the element is :-

K=2

L=8

m=4

That means in first shell 2 electrons are there, 8 electrons are present in 2nd shell, and 3rd shell has 4 electrons.

According to the electronic configuration the valency will be +4 or -4 because silicon needs 4 electrons more or lose 4 electrons to make it's outer shell saturated. Therefore we can say that the valency of silicon is 4.

The electron configuration of silicon is shown through the picture.