Chapter 3: Matter and Change

Multiple Choice

An element is defined by the number of protons it has, this is also called it’s

• Mass Number

• Symbol

• Atomic Number

• Formula

Multiple Choice

What is the center of the atom called?

• Proton

• Electron Cloud

• Nucleus

• Neutron

Multiple Choice

What is found in the outermost energy level of an atom?

• Electrons

• Valence Electrons

• Protons

• Neutrons

Multiple Choice

When a solid skips the liquid phase and turns directly into a gas

• Sublimation

• Deposition

• Condensation

• Evaporation

Multiple Choice

When two substances in a mixture are able to be recognized, it is called

• Heterogenous

• Homogenous

• Solution

• Alloy

Multiple Choice

Atoms have the same number of _____ as they do _______, makin them neutral

• protons and electron

• protons and neutrons

• electrons and neutrons

• electrons and clouds

Multiple Choice

Isotopes are atoms of the same element that have different numbers of

• electrons

• protons

• neutrons

• atomic numbers

Multiple Choice

A type of solid where particles are arranged in geometric patterns

• Liquid

• Plasma

• Glass

• Crystalline Structure

Multiple Choice

Electrons have what type of charge

• Positive

• Negative

• Neutral

• none of the above

Multiple Choice

Fresh squeezed orange juice (with pulp) is considered

• Homogenous

• Heterogenous

• Solution

• Compound

Multiple Choice

A state of matter where the particles are barely moving (vibrating) and has a definite shape and volume

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

Copper has 3 valence electrons, will it gain 5 or lose 3, and what ion will it become?

• Gain; Cu^-3

• Lose; Cu⁺³

• Gain; Cu^-5

• Lose; Cu⁺³

Multiple Choice

Covalent compounds are also called?

• Molecules

• Solutions

• Ionic Bonds

• all of the above

Multiple Choice

The combined mass of protons and neutrons is also called

• Atomic Mass

• Atomic Number

• Nucleus Mass

• Basic Mass

Multiple Choice

When a solid becomes a liquid

• Freezing

• Melting

• Evaporation

• Deposition

Multiple Choice

Homogenous mixtures are also called

• Solutions

• compounds

• polar

• Heterogenous

Multiple Choice

Bonds that form between the opposite attraction of ions

• Ionic Compound

• Covalent Compound

• Polar Covalent Compound

• Molecule

Multiple Choice

An atom that gains/loses electrons to become charges is called

• bond

• element

• ion

• isotope

Multiple Choice

A force that holds elements in a compound

• Chemical bond

• Physical Bond

• Gravity

• Glue

Multiple Choice

How many atoms of Sulfur (S) will be used to make K₂S

• 0

• 1

• 2

• 3