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Chemistry Unit 2 + 3 > ATOMS > Flashcards

Flashcards in ATOMS Deck (10):
1

What is the mass of a proton?

1

2

What is the mass of a neutron?

1

3

What is the mass of an electron?

Very small

4

What is the charge of a proton?

+1

5

What is the charge of a neutron?

0

6

What is the charge of an electron?

-1

7

What is an elements atomic number?

The number of protons in the nucleus

8

What is the number of protons e?

The number of electrons

9

What is the number of electrons equal to?

The number of protons

10

What is the mass of an atom made up from? (aka the mass number) and why?

Protons + neutrons, because electrons weigh very little