Answer:
There are 8 electrons in the outer ring, and has to react with 8 or fewer electrons to form a stable molecule.
Explanation:
The outer-most orbits of silicon contains a maximum of eight (8) electrons. It requires 8 of fewer electrons to form a stable molecule.
The type is off in a couple of places with half of the lines shifted over one space, so it makes it hard to read. Check the pic.
The answer is D. A species diversity