Substance that can not be broken down into smaller pieces.

Smallest Part of the Element that maintains its Identity.

Center of the Atom (where the protons and neutrons are located)

Positive Charged Subatomic Particle

Neutrally Charged Subatomic Particle.

Negatively Charged Subatomic Particle.

Number of Protons - Never Changes.

Total Mass; p⁺ and n°.

Anything with Mass and Volume.

Characteristics used to Describe an object.

Recipe of Compounds; The Arrangement of Element Symbols and Subscripts.

Arrangement of chemical elements in order of atomic number that groups elements with common characteristics in the same area of the table.

Different forms of an Atom with a Different number of Neutrons.

Location outside of the Nucleus where Electrons Travel.

+1

-1

0 or Neutral

Protons, Neutrons & Electrons.

Charged Particle.

Positively Charged Particle.

Negatively Charged Particle.

Electrons Gained.

Electrons Lost.

p⁺ = n°

Protons Never Change.

Sub = Under and Atomic = Atom >> Under the Atom.

Nucleons are the Protons and the Neutrons.

Most of the Atom's Mass is in the Nucleus where the Nucleons are.

FALSE: Proton and Electron Number are the Same only when the Atom is Neutral. The Neutron Number depends on the Mass Number.

Mass Number Amount subtract the Number of Protons (Atomic Number).