Free Printable 1/23 - Chemistry Review

1.

Which two elements are in the same period?

a)

Boron and Carbon

b)

Potassium and Sodium

c)

Lithium and Magnesium

d)

Zinc and Nitrogen

2.

Elements in the same group have the same

a)

energy levels

b)

valence electrons

c)

protons

d)

atomic number

3.

How many electron shells/levels does this atom have?

a)

1

b)

2

c)

3

d)

4

4.

What is the identity of an element with 16 protons?

a)

Helium

b)

Oxygen

c)

Silicon

d)

Sulfur

5.

What do all of these elements have in common?

a)

They all have 3 valence electrons

b)

They all have 3 protons

c)

They all have 3 energy levels

d)

They all have 3 neutrons

6.

How many valence electrons does Na have?

a)

1

b)

5

c)

6

d)

11

7.

Chlorine ( Cl) has _________ valence electrons.

a)

3

b)

5

c)

7

d)

8

8.

Select the elements that has 8 valence electrons.

a)

Ne

b)

Br

c)

Kr

d)

Xe

9.

All of these elements have 4 valence electrons EXCEPT______

a)

Carbon

b)

Silicon

c)

Germanium

d)

Selenium

10.

The atomic mass of Titanium is 48 and its proton is 22, therefore its number of neutron is ________

a)

22

b)

24

c)

26

d)

70

11.

Which group has the greatest number of valence electrons?

a)

1

b)

14

c)

18

d)

16

12.

The period that an element is in, tells you what?

a)

Number of protons

b)

Number of electrons

c)

Number of valence electrons

d)

Number of shells

13.

Beryllium is in group number______.

a)

Group 2

b)

Group 3

c)

Group 4

d)

Group 7

14.

How many valence electrons does Phosphorus Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

15.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

16.

How many valence electrons are found in atoms of group 14?

a)

4

b)

3

c)

14

d)

16

17.

a)

2

b)

8

c)

3

d)

13

18.

Which element has 2 energy shells and 3 valence electrons

a)

Si

b)

B

c)

Li

d)

He

19.

Period 1, Group 18

a)

Hydrodgen

b)

Sodium

c)

Flourine

d)

Helium

20.

Group 16, Period 3

a)

Phosphorus

b)

Sulfur

c)

Aluminum

d)

Oxygen

21.

How many valence electrons are in this atom?

a)

2

b)

3

c)

5

d)

6

22.

How many valence electrons are in this atom?

a)

3

b)

8

c)

13

d)

14

23.

How many valence electrons are in this atom?

a)

2

b)

7

c)

9

d)

10

24.

How many valence electrons are in this atom?

a)

14

b)

13

c)

10

d)

3

25.

How many valence electrons are in this atom?

a)

2

b)

10

c)

8

d)

20

26.

Which two particles make up the nucleus (center) of an atom?

a)

Protons and Electrons

b)

Protons and Neutrons

c)

Neutrons and Electrons

27.

The particles with no charge in an atom are the _______.

a)

electrons

b)

neutrons

c)

protons

28.

The positively charged particles of an atom are the ________.

a)

electrons

b)

protons

c)

neutrons

29.

The negatively charged particles of an atom are the ______.

a)

electrons

b)

protons

c)

neutrons

30.

:What is letter “A.”pointing to?

a)

Proton

b)

Neutron

c)

Electron

31.

What is letter “B” pointing to?

a)

Neutron

b)

Proton

c)

Electron

32.

What is letter “C”. pointing to?

a)

Neutron

b)

Proton

c)

Electron

33.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

34.

How many protons does Lithium have?

a)

1

b)

3

c)

4

d)

7

35.

What is the mass of this atom?

a)

1

b)

3

c)

4

d)

7

36.

What is the atomic number of this atom?

a)

10

b)

20

c)

30

37.

What is the mass of this atom?

a)

10

b)

20

c)

30

38.

What is the mass of this atom?

a)

13

b)

14

c)

27

d)

40

39.

How many protons does platinum have?

a)

78

b)

117

c)

195

40.

How many protons does oxygen have?

a)

16

b)

15.99

c)

8

41.

These elements are in a:

a)

group

b)

period

42.

Each diagram above represents an atom of a different element. Based on the diagrams, which two elements would be in the same period?

a)

Elements 2 and 3

b)

Elements 3 and 4

c)

Elements 1 and 3

d)

Elements 1 and 4

43.

Which of the following pairs of elements is in the same period?

a)

Li and Mg

b)

N and P

c)

B and F

d)

Si and As

44.

what period would this element be in?

a)

6

b)

8

c)

3

d)

16

45.

Which two elements on the periodic table are in the same period?

a)

Se and Te

b)

Sn and Rb

c)

K and Ba

d)

F and Cl

46.

How many groups and periods are on the Periodic Table?

a)

over 100 groups and periods

b)

18 groups, 8 periods

c)

18 periods, 7 groups

d)

18 groups, 7 periods

47.

Group 16, Period 3

a)

Phosphorus

b)

Sulfur

c)

Aluminum

d)

Oxygen

48.

Period 1, Group 18

a)

Hydrodgen

b)

Sodium

c)

Flourine

d)

Helium

49.

Group 14, Period 4

a)

Arsenic

b)

Germanium

c)

Gallum

d)

Tin

50.

How many neutrons does sodum (Na) have?

mass number - atomic number = neutrons

M - A = N

a)

11

b)

23

c)

34

d)

12

51.

How many neutrons does hydrogen (H) have?

M - A = N

mass number - atomic number = neutrons

a)

1

b)

0

c)

2

d)

11

52.

Give the number of neutrons for the element potassium (K).

M - A = N

mass number - atomic number = neutrons

a)

19

b)

39

c)

20

d)

58

53.

Give the number of neutrons for the element arsenic (As).

M - A = N

mass number - atomic number = neutrons

a)

33

b)

42

c)

74

d)

34

54.

What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?

a)

22

b)

11

c)

34

d)

23

55.

The atomic mass of silicon (Si) is

a)

28

b)

27

c)

26

d)

25

56.

How many neutrons are in this element?

a)

26

b)

29

c)

30

d)

55.845

57.

How many neutrons does this element have?

a)

16

b)

17

c)

32

d)

32.066

58.

What is this element's atomic number?

a)

26

b)

30

c)

55.845

d)

56

59.

How many protons does this element have?

a)

1

b)

20

c)

40

d)

60

60.

How many electrons does this element have?

a)

25

b)

26

c)

29

d)

30

1/23 - Chemistry Review

Total questions: 60

Worksheet time: 1hrs 6mins

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