Acarcinogen is a cancer-causing substance. true or false.

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?