Question

There are four electrons in third orbit in silicon

Answer 1

Answer:

yes there are 4electrons in the 3rd orbit of silicon

Explanation:

The electronic configuration of silicon is 1s^2 2s^2 2p^6 3s^2 3p^2 (it's atomic number is 14).

It belongs to 4rth group and 3rdperiod. so it's valency is 4.

Answer 2

Answer:

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Explanation:

There are some materials, which have neither good conductivity nor bad conductivity of electricity. They have a moderate range of electrical conductivity. The examples of such materials are germanium, silicon, carbon etc. As the conductivity of those materials lies between good conductors and insulators, and these materials are called semiconductors.