Chapter 2 Flashcards

1
Q

What is matter?

A

Anything that has mass and occupies space

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2
Q

What is chemistry?

A

The study of matter and its interactions

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3
Q

What is an atom?

A

The smallest unit of matter that still retains its original properties

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4
Q

What are atoms composed of?

A

Subatomic particles

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5
Q

What are subatomic particles?

A

Protons- positively charges; reside in central core of atom called atomic nucleus; p+
Neutrons- have no charge; in atomic nucleus
Electrons- e-

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