P.S. 9-Week Exam

A change to a substance that DOES NOT change the identity of the substance.

• Chemical Chance

• Physical Change

• Physical Property

• Chemical Property

A positively charged particle found in the nucleus of an atom.

• proton

• neutron

• electron

• quark

The weight of an individual element.

• Atomic Mass

• Atomic Number

• Average Atomic Mass

• Weight

Anything that has mass and takes up space.

• Matter

• Mass

• Volume

• Space

A variation of an element that has a different number of neutrons.

• Ion

• Isotope

• Quark

• Molecule

Material made of two or more substances that can be separated by physical means.

• Mixture

• Colloid

• Solution

• Compound

These are located in the outermost shell in the electron cloud.

• Electrons

• Valence Electrons

• Protons

• Neutrons

A change to a substance that can change the identity of that substance (Ex. Burning)

• Chemical Change

• Physical Change

• Chemical Property

• Physical Property

Neutral subatomic particles that are found in the nucleus.

• Protons

• Neutrons

• Electrons

• Quark

Two or more atoms combined

• Molecule

• Element

• Mixture

• Solution