Silicon being carbon's "family member" opens up a lot of questions about its role in the world, given carbon's prevalence and importance. What are your thoughts on the likelihood of non- carbon-based life forms

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

i'm pretty sure its b i might be wrong though!