Chapter 4 Test Quiz

Question 1

Matter

Answer 1

Anything that takes up space and has mass

Question 2

Two types of matter

Answer 2

Physical and chemical

Question 3

Physical properties

Answer 3

Observed without changing the composition of the substance

Question 4

Physical properties include

Answer 4

Density, color, hardness, freezing point, boiling point, and the ability to conduct an electric current.

Question 5

Chemical properties

Answer 5

Describes how a substance reacts with other substances

Question 6

Element

Answer 6

A substance that cannot be broken down into simpler stable substances by chemical means

Question 7

Atom

Answer 7

The smallest unit of an element that has the chemical properties for that element

Question 8

Subatomic particles

Answer 8

Protons, electrons, and neutrons

Question 9

Protons

Answer 9

Subatomic particles that have a positive charge

Question 10

Electrons

Answer 10

Have a negative charge

Question 11

Neurons

Answer 11

Neutral

Question 12

Nucleus

Answer 12

A small region in the center of an atom

Question 13

Electron cloud

Answer 13

A certain region of space that surround the nucleus

Question 14

Atomic number

Answer 14

Number of protons in the nucleus of an atom

Question 15

Periodic number

Answer 15

A system for classifying elements

Question 16

Mass number

Answer 16

The sum of the number of protons and neutrons in an atom

Question 17

Unified atomic mass unit is used when

Answer 17

The mass of a subatomic particle is to small to be expressed in grams

Question 18

Isotope

Answer 18

An atom that has the same number of protons as other atoms of the same element do, but has a different number on neutrons