Composition Of Matter Section 2 Unit 1

Question 1

What is mass

Answer 1

The quantity of matter an object has

Question 2

What are elements

Answer 2

Pure substances that cannot be broken down chemically into simpler kinds of matter

Question 3

What is an atom

Answer 3

The simplest particle of an element that retains all of the properties of that element

Question 4

What is matter

Answer 4

Anything that occupies space and has mass

Question 5

What is the nucleus

Answer 5

The central core

Question 6

What is a compound

Answer 6

A pure substance that is made up of atoms of two or more elements

Question 7

What is a covalent bond

Answer 7

Forms when two atoms share one or more pairs of electrons

Question 8

What is a molecule

Answer 8

The simplest part of a substance that retains all of the properties of the substance and that can exist in a free state

Question 9

What is an ion

Answer 9

An atom or molecule with an electrical charge

Question 10

What is an ionic bond

Answer 10

Positive and negative electrical charges attract each other