Section 6.1 and 6.2

Match it! Select the correct answer from the pull down...Good luck!

Atoms of the same element that have different number of neutrons are called ?

Elements are given unique abbreviations known as ?

The subatomic particle that has a positive charge is the ?

The overall motion of each electron can be mathematically represented by four ?

Protons and neutrons are made up of smaller particles called ?

An atom that has an electrical charge is a(n) ?

According to the electron-cloud model, electrons move unpredictably through regions of space called ?

Substances composed of a single type of atom are ?