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Electron Distribution
Electron Distribution Practice from Atomic numbers 1-20
12
Chemistry
11th Grade
12/23/2013

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Cards

Term

Hydrogen 1

H

Mass Number: 1

Definition

(+1) )1

Valence e-: 1

H

Term

Helium 2

He

Mass Number: 4

Definition

(+2) )2

Valence e-: 2

•He•

Term

Lithium 3

Li

Mass Number: 7

Definition

(+3) )2)1

Valence e-: 1

Li

Term

Beryllium 4

Be

Mass Number: 9

Definition

(+4) )2)2

Valence e-: 2

•Be•

Term

Boron 5

B

Mass Number: 11

Definition

(+5) )2)3

Valence e-: 3

•B•

Term

Carbon 6

C

Mass Number: 12

Definition

(+6) )2)4

Valence e-: 4

•C•

Term

Nitrogen 7

N

Mass Number: 14

Definition

(+7) )2)5

Valence e-: 5

:

•N•

Term

Oxygen 8

O

Mass Number: 16

Definition

(+8) )4)6

Valence e-: 6

:O:

Term

Fluorine 9

F

Mass Number 19

Definition

(+9) )2)7

Valence e-: 7

:F:

:

Term

Neon 10

Ne

Mass Number: 20

Definition

(+10) )2)8

Valence e-: 8

:

:Ne:

:

Term

Sodium 11

Na

Mass Number: 23

Definition

(+11)  )2)8)1

Valence e-: 1

Na

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