How many atoms are there in a sample of lead with a mass of 6.8 g? a. 0.0328 atoms of lead
b. 1.83 atoms of lead
c. 1.98 x 1022 atoms of lead
d. 6.02 x 1023 atoms of lead

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.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

the answer is c.the valence of the atoms combine .