Question

How many electrons in the first free levels of silicon

Answer 1

There are four electrons in the n=3 shell

Answer 2

There are no electrons in the first free level of any element.

But I suspect it is a typo and it means the first three levels? Silicon has electronic configuation of

1s2 2s2 2p6 3s2 3p2

So I suspect the answer that is being looked for is 10.