Which group of elements readily loses two electrons to form a compound?

Can someone me with questions 15 to 17 plz.

May someone me with these science questions

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.