Which of the following compounds would be expected to be least destructive to the ozone layer?

select one:

a. dichlorodifluoromethane
b. chlorodifluoromethanc. trichlorofluoromethane
d. 1,1,2,2-tetrachloro-1,2-difluoroeth ane

Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.