Science ( Atoms )

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12 Terms

1
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Who discovered the Proton?

Eugen Goldstein

2
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Who discovered the Electron?

J.J Thomson

3
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Who discovered the neutron?

James Chadwick

4
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In what year did Eugen Goldstein discover the Proton?

1886

5
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In what year did J.J Thomson discover the electron?

1897

6
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In what year did James Chadwick discover the neutron?

1932

7
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What charge does the Proton carry?

The positive charge.

8
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What charge does the electron carry?

The negative charge.

9
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What is the elementary particle?

Neutron

10
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Tells the number of protons and electrons

Atomic Number

11
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It is the sum of the protons and electrons in an atom.

Mass Number

12
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What is the formula for solving the number of neutrons in an atom?

Mass Number - Atomic number = Number of Neutron