Question

Which element has three electron shells and 4 valence electrons?

Silicon


Carbon


Gallium


Argon

Answer 1

Gallium

Step-by-step explanation:

I believe this is the answer if not then the only other option is boron but anyways the answer is Gallium

Answer 2

Answer: Silicon

Step-by-step explanation:

For something to have 4 valence electrons, it must be in the 14th column, which elimates gallium and argon for the possible answers. For somethign to have 3 electron shells, it must be in the third row of the periodic table which means the answer is silicon.