Question

Calcium reacts with fluorine to form the compound CaF₂. In the reaction, each atom of one of the elements lose two electrons, and each atom of the other element gains one electron.

(a) Atoms of which element gains electron?

(b) Atoms of which element lose electrons?

(c) What is the charge on the atoms that gain one electron?

(d) What is the charge on the atoms that loses two electrons?

(e) Write the full atomic symbol, including charges, for each element. Give Ca 20 neutrons and F 10 neutrons.