Chapter 5- Atomic Structure

Atoms of the same element with the same number of electrons and protons but different number of neutrons.

________ lose or gain electrons to become either positive ions (cations) or negative ions (anions)

Sub-atomic particles with a positive charge.

Since an atom has a(n) ________ and electrons, it is neutral (no charge)

Sub-atomic particles with a negative charge.

Number of protons (and therefore electrons) in an atom.

A particle that composes an atom.

Number of protons and neutrons in an atom.

The distribution of electrons of an atom or molecule in atomic or molecular orbitals.

The electrons in the last shell of an atom.

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.