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subatomic particles 2

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
2.
Where is the proton located?
a)
In the very dense nucleus
b)
Floating around in the negative electron cloud
c)
the loose nucleus
d)
the positive electron cloud
3.
Which description about the proton is accurate?
a)
Positively charged particle with a mass less than 0 amu
b)
A neutrally charged particle with a mass less than 0 amu
c)
Positively charged particle with a mass of 1 amu
d)
A neutrally charge particle with a mass of 1 amu
4.

How many protons are in Sodium?

a)

11

b)

22

c)

12

d)

33

5.

How many neutrons are in Magnesium?

a)

36

b)

12

c)

24

d)

6

6.

How many electrons are in Aluminium?

a)

40

b)

27

c)

13

d)

14

7.

How many protons are in Silicon?

a)

7

b)

42

c)

28

d)

14

8.

How many neutrons are in Phosphorus?

a)

16

b)

15

c)

31

d)

46

9.

How many electrons are in Sulfur?

a)

32

b)

16

c)

48

d)

8

10.

How many protons are in Chlorine?

a)

35

b)

18

c)

17

d)

52

11.

How many neutrons are in Argon?

a)

18

b)

40

c)

58

d)

22

12.

How many electrons are in Potassium?

a)

19

b)

20

c)

58

d)

39

13.

How many protons, neutrons, and electrons are in Oxygen?

a)

Protons = 8; Neutrons = 16; Electrons = 8

b)

Protons = 8; Neutrons = 8; Electrons = 8

c)

Protons = 16; Neutrons = 8; Electrons = 16

d)

Protons = 16; Neutrons = 24; Electrons = 16

14.

A neutron has what charge?

a)

Positive

b)

Negative

c)

It has no charge (it is neutral)

15.

An electron has what charge?

a)

Positive

b)

Negative

c)

It has no charge (it is neutral)

16.

What is the center of an atom called?

a)

The headquarters

b)

The centrometer

c)

The hypothesis

d)

The nucleus

17.

Typically in an atom, which two subatomic particles are equal in number?

a)

protons and neutrons

b)

all subatomic particles are equal in number

c)

neutrons and electrons

d)

protons and electrons

18.

Adding or subtracting electrons changes the elements overall charge and makes the element change into an...

a)

ion

b)

mixture

c)

isotope

d)

neutral atom

19.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom