Category 1 Chemistry

Smallest unit of matter-

• Atom

• Cell

Tags

NGSS.MS-PS1-1

Positive, 1 AMU (Mass), located in the nucleus-

• Proton

• Electron

Tags

NGSS.MS-PS1-1

No Charge, 1 AMU (Mass), located in the nucleus-

• Proton

• Neutron

Tags

NGSS.MS-PS1-1

Negative charge, 0 AMU (No Mass), located on the shells/clouds-

• Electron

• Neutron

Tags

NGSS.MS-PS1-1

Electrons on the very last shell-

• Halogens

• Valence Electrons

Tags

NGSS.MS-PS1-1

Identity of the atom-

• Protons

• Neutrons

Tags

NGSS.MS-PS1-1

Reactivity of the atom-

• Protons

• Valence Electrons

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Columns on the Periodic Table. Also known as families, and gives valence electrons.

• Groups

• Periods

Rows on the periodic table that tell you the number of shells or Energy Levels for each atom-

• Periods

• Groups

Equals Protons and Electrons-

• Mass Number

• Atomic Number

Tags

NGSS.MS-PS1-1