Free Printable Chemical Elements 1-20

Free Printable Worksheets

Worksheets

Chemical Elements 1-20

Total questions: 60

Worksheet time: 30mins

Name

Class

Date

1.

Atomic number of hydrogen

a)

3

b)

5

c)

1

d)

2

2.

Atomic number of helium

a)

8

b)

1

c)

4

d)

2

3.

Atomic number of lithium:

a)

3

b)

8

c)

10

d)

15

4.

Atomic number of beryllium:

a)

16

b)

14

c)

4

d)

9

5.

Atomic number of boron:

a)

5

b)

3

c)

12

d)

20

6.

Atomic number of carbon:

a)

12

b)

8

c)

6

d)

19

7.

Atomic number of nitrogen:

a)

17

b)

13

c)

5

d)

7

8.

Atomic number of oxygen:

a)

18

b)

1

c)

8

d)

11

9.

Atomic number of fluorine:

a)

9

b)

10

c)

5

d)

7

10.

Atomic number of neon:

a)

12

b)

1

c)

15

d)

10

11.

Atomic number of sodium:

a)

11

b)

14

c)

7

d)

3

12.

Atomic number of magnesium:

a)

1

b)

16

c)

12

d)

9

13.

Atomic number of aluminium:

a)

5

b)

13

c)

20

d)

3

14.

Atomic number of silicon:

a)

4

b)

5

c)

15

d)

14

15.

Atomic number of phosphorus:

a)

11

b)

15

c)

18

d)

10

16.

Atomic number of sulfur:

a)

16

b)

10

c)

15

d)

17

17.

Atomic number of chlorine:

a)

10

b)

5

c)

20

d)

17

18.

Atomic number of argon:

a)

8

b)

18

c)

19

d)

20

19.

Atomic number of potassium:

a)

19

b)

2

c)

15

d)

8

20.

Atomic number of calcium:

a)

20

b)

17

c)

13

d)

14

21.

Hydrogen

a)

He

b)

H

c)

Na

d)

B

22.

Helium

a)

He

b)

H

c)

Be

d)

Li

23.

Lithium

a)

Cl

b)

S

c)

Li

d)

K

24.

Beryllium

a)

Ca

b)

O

c)

Be

d)

B

25.

Boron

a)

Si

b)

B

c)

Ne

d)

Br

26.

Carbon

a)

Cu

b)

Ca

c)

Cr

d)

C

27.

Nitrogen

a)

N

b)

Ni

c)

Na

d)

Mg

28.

Oxygen

a)

Os

b)

O

c)

F

d)

K

29.

Fluorine

a)

F

b)

Fe

c)

Fr

d)

Fl

30.

Neon

a)

Na

b)

N

c)

Ne

d)

Nh

31.

Sodium

a)

S

b)

Zn

c)

Na

d)

N

32.

Magnesium

a)

Ne

b)

Mn

c)

N

d)

Mg

33.

Aluminium

a)

Ar

b)

As

c)

Al

d)

Au

34.

Silicon

a)

Si

b)

S

c)

Sn

d)

Se

35.

Phosphorus

a)

K

b)

Pb

c)

P

d)

Pu

36.

Sulfur

a)

Na

b)

K

c)

S

d)

Sr

37.

Chlorine

a)

C

b)

Ca

c)

Co

d)

Cl

38.

Argon

a)

Ag

b)

Ar

c)

Au

d)

Al

39.

Potassium

a)

K

b)

P

c)

Na

d)

Po

40.

Calcium

a)

Na

b)

C

c)

Cu

d)

Ca

41.

H

a)

Chlorine

b)

Helium

c)

Potassium

d)

Hydrogen

42.

He

a)

Beryllium

b)

Neon

c)

Helium

d)

Hydrogen

43.

Li

a)

Argon

b)

Lithium

c)

Silicon

d)

Beryllium

44.

B

a)

Beryllium

b)

Boron

c)

Sulfur

d)

Magnesium

45.

C

a)

Carbon

b)

Chlorine

c)

Calcium

d)

Sodium

46.

N

a)

Neon

b)

Lithium

c)

Sodium

d)

Nitrogen

47.

O

a)

Postassium

b)

Silicon

c)

Oxygen

d)

Hydrogen

48.

F

a)

Chlorine

b)

Fluorine

c)

Argon

d)

Neon

49.

Ne

a)

Neon

b)

Nitrogen

c)

Silicon

d)

Beryllium

50.

Na

a)

Nitrogen

b)

Sodium

c)

Calcium

d)

Neon

51.

Mg

a)

Potassium

b)

Argon

c)

Magnesium

d)

Helium

52.

Al

a)

Argon

b)

Lithium

c)

Aluminium

d)

Sodium

53.

Si

a)

Sulfur

b)

Sodium

c)

Silicon

d)

Lithium

54.

P

a)

Potassium

b)

Hydrogen

c)

Boron

d)

Phosphorus

55.

S

a)

Sodium

b)

Silicon

c)

Argon

d)

Sulfur

56.

Cl

a)

Calcium

b)

Silicon

c)

Carbon

d)

Chlorine

57.

Be

a)

Beryllium

b)

Neon

c)

Lithium

d)

Boron

58.

Ar

a)

Aluminium

b)

Carbon

c)

Argon

d)

Hydrogen

59.

K

a)

Aluminium

b)

Magnesium

c)

Potassium

d)

Sodium

60.

Ca

a)

Carbon

b)

Calcium

c)

Argon

d)

Sodium

Reset

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