First 20 Elements

H

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Hydrogen

Protons = 1

Electrons = 1

Neutrons = 0

Li

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Lithium

Protons = 3

Electrons = 3

Neutrons =  4

He

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Helium

Protons = 2

Electrons = 2

Neutrons =  2

Be

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Beryllium

Protons = 4

Electrons = 4

Neutrons =  5

B

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Boron

Protons = 5

Electrons = 5

Neutrons =  6

C

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Carbon

Protons = 6

Electrons = 6

Neutrons =  6

N

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Nitrogen

Protons = 7

Electrons = 7

Neutrons =  7

O

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Oxygen

Protons = 8

Electrons = 8

Neutrons =  8

F

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Fluorine 

Protons = 9

Electrons = 9

Neutrons =  10

Ne

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Neon

Protons = 10

Electrons = 10

Neutrons =  10

Na

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Sodium

Protons = 11

Electrons = 11

Neutrons =  12

Mg

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Magnesium

Protons = 12

Electrons = 12

Neutrons =  12

Al

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Aluminium

Protons = 13

Electrons = 13

Neutrons =  14

Si

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Silicon

Protons = 14

Electrons = 14

Neutrons =  14

P

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Phosphorus

Protons = 15

Electrons = 15

Neutrons =  16

S

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Sulphur

Protons = 16

Electrons = 16

Neutrons = 16 

Cl

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Chlorine

Protons = 17

Electrons = 17

Neutrons =  22

Ar

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Argon 

Protons = 18

Electrons = 18

Neutrons =  22

K

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Potassium

Protons = 19

Electrons = 19

Neutrons =  20

Ca

[image]

Calcium

Protons = 20

Electrons = 20

Neutrons =  20

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