Atoms, Ions, Isotopes

Ions - An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge.

Isotopes - Atoms of the same element always have the same number of protons, but can have different numbers of neutrons.

These different forms of the same element are called isotopes.

Teacher Instructions

•  Open this presentation.

• Each student is assigned a separate page number, or series of page numbers.

Student instructions

• Drag the symbols for protons, neutrons and electrons onto your sheets to construct atoms, isotopes and ions.