HELP PLS! Just put Fnet=0 or Fnet is NOT equal to zero for each problem

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o