PRACTICE DRAWING ATOMS

DRAWING ATOMS RULES

PROTONS = Atomic numberELECTRONS = Atomic numberNEUTRONS =

mass number – atomic number

1st level can hold up to 2 electrons2nd level can hold up to 8 electrons3rd level can hold up to 18 electrons

DRAW AN ATOM – Hydrogen (H)

HYDROGEN

Atomic number = 1

Mass number = 1.0079

DRAW AN ATOM- Hydrogen (H)

PROTONS =

ELECTRONS =

NEUTRONS =

1 P+

1 e-

1-1 = 0 N

1P+e-0 N

DRAW AN ATOM – Helium (He)

HELIUM

Atomic number = 2

Mass number = 4.002

DRAW AN ATOM- Helium (He)

PROTONS =

ELECTRONS =

NEUTRONS =

2 P+

2 e-

4-2 = 2 N

2P+

e-e-2 N

DRAW AN ATOM – Oxygen (O)

OXYGEN

Atomic number = 8

Mass number = 15.9994

DRAW AN ATOM- Oxygen (O)

PROTONS =

ELECTRONS =

NEUTRONS =

8 P+

8 e-2 in 1st level6 in 2nd level

16-8= 8 N

8P+

e-e-8 N

e-e-

e-e-

e-

e-

DRAW AN ATOM – Boron (B)

Boron

Atomic number = 5

Mass number = 10.811

DRAW AN ATOM- Boron (B)P=

E =

N = 11 – 5 = 6 N

5P+

5P+

e-e-6 N

e-

e-

5e-2 in 1st level3 in 2nd levele-

DRAW AN ATOM – Aluminum (Al)

Aluminum

Atomic number = 13

Mass number = 26.981

DRAW AN ATOM – Aluminum (Al)

PROTONS =

ELECTRONS =

NEUTRONS =

13 P+

13 e-2 in 1st level8 in 2nd level3 in 3rd level

27 - 13 = 14N

13P+

2e-

3e-14 N 8e-

DRAW AN ATOM – Lithium (Li)

LITHIUM

Atomic number = 3

Mass number = 6.941

DRAW AN ATOM- Lithium (Li)

PROTONS =

ELECTRONS =

NEUTRONS =

3 P+

3 e-2 in 1st level1 in 2nd level

7-3 = 4N

3P+

e-e-4 N

e-

DRAW AN ATOM – Nitrogen (N)

NITROGEN

Atomic number = 7

Mass number = 14.0067

DRAW AN ATOM- Nitrogen (N)

P=

E =

N = 14-7=7 N

7P+

7P+

e-e-7 N

e-e-

e-e-e-

7 e-2 in 1st level5 in 2nd level

DRAW AN ATOM – Phosphorus (P)

Phosphorus

Atomic number = 15

Mass number = 30.973

DRAW AN ATOM – Phosphorus (P)

PROTONS =

ELECTRONS =

NEUTRONS =

15 P+

12 e-2 in 1st level8 in 2nd level5 in 3rd level

31-15 = 16N

15P+

2e-

5e-16 N 8e-

DRAW AN ATOM – Fluorine (F)

Fluorine

Atomic number = 9

Mass number = 18.998

DRAW AN ATOM- Fluorine (F)

PROTONS =

ELECTRONS =

NEUTRONS =

9 P+

9 e-2 in 1st level7 in 2nd level

19 – 9 = 10N

9P+

2e-10 N 7e-

DRAW AN ATOM – Carbon (C)

Carbon

Atomic number = 6

Mass number = 12.01

DRAW AN ATOM- Carbon (C)P=

E =

N = 12 – 6 = 6 N

6 P+

6P+

e-e-6 N

e-e-

e-

6e-2 in 1st level4 in 2nd levele-

DRAW AN ATOM – Sodium (Na)

SODIUM

Atomic number = 11

Mass number = 22.989

DRAW AN ATOM- Sodium (Na)P=

E =

N = 23-11= 12 N

11 P+

11P+

e-e-12 N

e-e-

e-e-

e-

e-

12 e-2 in 1st level8 in 2nd level1 in 3rd level

e-

e-

e-

DRAW AN ATOM – Beryllium (Be)

Beryllium

Atomic number = 4

Mass number = 9.01

DRAW AN ATOM- Beryllium (Be)P=

E =

N = 9 – 4 = 5 N

4P+

4P+

e-e-5 N

e-

e-

4e-2 in 1st level2 in 2nd level

DRAW AN ATOM – NEON (Ne)

Neon

Atomic number = 10

Mass number = 20.179

DRAW AN ATOM- Neon (Ne)

PROTONS =

ELECTRONS =

NEUTRONS =

10 P+

10 e-2 in 1st level8 in 2nd level

20 – 10 = 10N

10P+

2e-10 N 8e-

DRAW AN ATOM – Silicon (Si)

Silicon

Atomic number = 14

Mass number = 28.0855

DRAW AN ATOM – Silicon (Si)

PROTONS =

ELECTRONS =

NEUTRONS =

14 P+

14 e-2 in 1st level8 in 2nd level4 in 3rd level

28 - 14 = 14N

14P+

2e-

4e-14 N 8e-