Ash remains from an ancient fire pit was discovered to have only 12.5% of the original Carbon-14 it once contained. If the half-life of Carbon-14 is 5,730 years,

how long ago was this pit used? Show or describe how you solved this. *



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.

the answer would be a

catya your not at all which answer i've seen you do this on another question!