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SUBATOMIC PARTICLES

Total questions: 53

Worksheet time: 55mins

Name
Class
Date
1.

The nucleus of an atom contains

a)

protons and electrons

b)

protons and neutrons

c)

electrons and neutrons

d)

protons, electrons, and neutrons

2.

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

3.

Neutral particles (those that have no charge) are

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

4.

In a neutral atom, the atomic number is equal to _.

a)

the number of protons

b)

the number of neutrons

c)

the number of electrons

5.

Which TWO of these are true about electrons?

a)

they are found in the electron cloud

b)

their mass is nearly zero

c)

they have a positive charge

6.

Which subatomic particle has a positive charge?

a)

proton

b)

neutron

c)

electron

d)

midichlorian

7.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

d)

cybertron

8.

What is the center of an atom called?

a)

The headquarters

b)

The centrometer

c)

The hypothesis

d)

The nucleus

9.

Which part of an atom contains these red (+) circles and these green (0) circles?

a)

proton

b)

neutron

c)

electron

d)

nucleus

10.

Which subatomic particle does the YELLOW (-) circle represent?

a)

proton

b)

neutron

c)

electron

d)

nucleus

11.

Which subatomic particle does the GREEN (0) circle represent?

a)

proton

b)

neutron

c)

electron

d)

nucleus

12.

How many protons are in Zirconium (Zr) ?

a)

40

b)

91

c)

30

d)

65

13.

What is the atomic mass of Copper (Cu) rounded to the nearest whole number?

a)

64

b)

29

c)

34

d)

92

14.

What is atomic mass? It is the average

a)

number of electrons and protons

b)

number of neutrons

c)

number of protons and neutrons

d)

number of protons

15.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)

nucleus.

16.

Which two subatomic particles have the greatest mass?

a)

Electrons

b)

Protons

c)

Neutrons

17.
The number of protons is equal to 
a)

atomic number

b)

atomic mass

c)

nucleus

18.

How many protons are in TITANIUM (Ti) ?

a)

22

b)

47

c)

48

d)

47.87

19.

How many protons does copper have?

a)

63.54

b)

29

c)

34

d)

92

20.

TITANIUM (Ti) has an atomic mass of

a)

22

b)

47

c)

48

d)

47.87

21.

How many protons does gold (Au) have?

a)

79

b)

196.967

c)

123

22.

What is the ATOMIC NUMBER of gold (Au)?

a)

79

b)

196.967

c)

123

23.

What is the ATOMIC MASS of gold (Au)?

a)

79

b)

196.967

c)

123

24.

Which of these has almost NO mass?

a)

protons

b)

neutrons

c)

electrons

25.

Why are atoms neutral? In other words, why is the charge of an atom equal to zero?

a)

number of positive protons = number of neutral neutrons

b)

number of positive protons = number of negative electrons

c)

number of neutral neutrons = number of negative electrons

26.

What is the number of neutrons in this element? (ATOMIC MASS - ATOMIC NUMBER = NUMBER OF NEUTRONS)

a)

14

b)

7

c)

15

d)

18

27.

An atom with the atomic number 6 has ____ protons.

a)
6
b)
12
c)
3
d)
Cannot be determined 
28.
Particles in an atom that are neutral and have no charge are ______. 
a)
Negatrons 
b)
Electrons 
c)
Neutrons 
d)
Protons 
29.

The overall charge of an atom is _____. (Hint: look at the top of your atoms notes)

a)

Positive 

b)

Depends on its mood 

c)

Neutral 

d)

Negative 

30.

Which of the following is a negatively-charged subatomic particle?

a)
Electron
b)
Proton
c)
Neutron
d)
Quark
31.
The particles that are found in the nucleus of an atom are _____.
a)
Neutrons and electrons
b)

Electrons

c)
Protons and neutrons
d)
Protons and electrons
32.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
33.

What are the 3 subatomic particles of an atom?

a)

Protons, neutrons, and isotopes

b)

Neutrons, isotopes, and electrons

c)

Positives, negatives, and electrons

d)

Protons, neutrons, and electrons

34.

Electrons have a _____ charge.

a)
negative
b)
positive
c)
neutral
35.

The smallest particle with characteristics of an element is known as the

a)

Periodic Table

b)

Atom

c)

Proton

d)

Electron

36.

How does the mass of a proton compare to the mass of a neutron?

a)

larger

b)

smaller

c)

equal

37.
These particles orbit around the nucleus of an atom.  What are they called?
a)
electrons
b)
protons
c)
neutrons
d)
photons
38.

These are the subatomic particles with the smallest mass.

a)

Protons

b)

Neutrons

c)

Electrons

39.

Which particles are indicated by the arrows?

a)
electrons and protons
b)
protons and neutrons
c)
electrons and neutrons
d)
photons and nucleons
40.

Drawings of atoms are not accurate because _____

a)
they show the nucleus at the center
b)

they are not drawn to scale

c)
the nucleus is drawn too small
d)
the electrons are on the outside
41.

Why is the overall charge of an atom neutral (0)?

a)

It has the same number of protons and neutrons.

b)

It has the same number of protons and electrons.

c)

It has the same number of electrons and neutrons.

42.
In terms of matter, the atom is almost entirely filled with _____
a)
orbiting electrons
b)
charged protons
c)
heavy neutrons
d)
empty space
43.

Which of these numbers is the atomic number?

a)

5

b)

10.811

44.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)

DNA and RNA

45.

What is the atomic mass of fluorine?

a)
9
b)
18
c)
17
d)

18.9984

46.

What does the 1.00794 in this element square represent?

a)

hydrogen

b)

atomic number

c)

atomic mass

d)

atomic explosion

47.

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom? Hint: only count the particles that have a mass of 1 amu.

a)

10

b)

20

c)

30

48.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
49.
Neutrons are _______________ particles.
a)
negative
b)
positive
c)
neutral
d)
cows
50.

What is the overall charge of this atom? (Hint: add the positive protons and negative electrons)

a)

+3

b)

-3

c)

0

d)

+1

51.

What is the overall charge of this helium atom? (Hint: add the positive protons and negative electrons)

a)

+2

b)

-2

c)

0

52.

What is the overall charge of this hydrogen atom? (Hint: add the positive protons and negative electrons)

a)

+1

b)

-1

c)

0

53.

An element has an atomic number of 9 and a mass of 19 amu. What is the number of protons this element has?

a)

9

b)

19

c)

10

d)

28

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