Names:

1.  How many neutrons, protons and electrons does the atom F-19 have?

    neutrons =

    protons =

    electrons =

2.  How many neutrons, protons and electrons does the molecule SO₂ have if the isotopes for
    sulfur and oxygen are 32 and 16 respectively?

    neutrons =

    protons =

    electrons =

3.    How many electrons do the following ions have?

    Fe³⁺  =

    Cl^-  =

    SO₄^2- =

    Hg₂²⁺ =