Answer: Silicon
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.
Answer:
Gallium
Explanation:
I believe this is the answer if not then the only other option is boron but anyways the answer is Gallium
