Which reason is MOST probable for why carbon is used in living organisms but not silicon?
A) Carbon can make four bonds, whereas silicon can only make three.
B) Carbon can make double bonds, but silicon cannot.
C) Carbon can form more preferred geometries when bonding.
D) Carbon is lighter, and therefore its bonds are stronger.
E) Silicon is heavier, and therefore its bonds are stronger.

Question

Quizplus · Accepted Answer

Carbon is lighter, allowing it to form stronger and more stable bonds, which is crucial for the complex molecules necessary for life.

Which Reason Is MOST Probable for Why Carbon Is Used