Unit 1 Review 6 SCI/ADV

A. The number written after an element's symbol in a chemical formula that indicated the number of atoms of that element.

• Subscript

• Atomic Mass

• Element

• Compound

B. Equal to the number of protons and electrons.

• Atomic Number

• Atomic Mass

• Element

• Compound

C. Smallest unit of an element.

• Atom

• Subatomic

• particles

• Proton

D. Protons + Neutrons

• Atomic Mass

• Subatomic particles

• Atomic Number

• Electrons

E. One type of atom that CANNOT be broken down.

• Electron

• Element

• Compound

• Proton

F. Neutrally charged particle found in the nucleus.

• Proton

• Neutron

• Electron

• Periodic Table

G. Tiny particles that make up an atom.

• Proton

• Neutron

• Electron

• Subatomic Particles

H. Combination of two or more substances that are not chemically combined.

• Proton

• Neutron

• Electron

• Mixture

I. Organization of 118 elements.

• Proton

• Neutron

• Electron

• Periodic Table

J. A group of 2 or more atoms bonded together.

• Proton

• Neutron

• Electron

• Molecule