Structure of an atom

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What is an element?
A substance made up of on type of atom.
1 of 6
What is an electron?
Negatively charged and the mass is 1/2000. It is found in shells.
2 of 6
What is a proton?
Positively charged and found in the nucleus. Mass is 1 unit.
3 of 6
What is a neutron?
Neutral. Found in nucleus. Mass is 1 unit.
4 of 6
What is the mass number?
Number of protons and neutrons in an atom
5 of 6
What is the Atomic number?
The number of protons in an atom.
6 of 6

Other cards in this set

Card 2

Front

What is an electron?

Back

Negatively charged and the mass is 1/2000. It is found in shells.

Card 3

Front

What is a proton?

Back

Preview of the front of card 3

Card 4

Front

What is a neutron?

Back

Preview of the front of card 4

Card 5

Front

What is the mass number?

Back

Preview of the front of card 5
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