1.Ions are atoms of the same element with different numbers of . 2.Isotopes are atoms of the same element with different numbers of
3.Adding or removing protons from an atom does what to the atom? .
4.An atom with the same number of protons and electrons has a charge of .
5.Adding two electrons to a neutral atom produces an ion with a charge of .
6.An atom with six protons and five electrons would have a charge of .
7.What atom is created with nine protons, nine neutrons, and nine electrons?
8.Show the full symbol for the above atom in the box at the right?
9.What does the upper-left number in the symbol represent?

10.What does the lower-left number in the symbol represent?