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Atomic Structure

Total questions: 60

Worksheet time: 5hrs 0mins

Name
Class
Date
1.

What are the subatomic particles?

a)

Protons, Electrons, Neutrons

b)

Molecules, and atoms

c)

Electrons, Protons, Nucleus

d)

Nucleus, and Electrons

2.

What is this subatomic particle that has positive charge?

a)

Electron

b)

Neutron

c)

Proton

d)

Megatron

3.

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

a)

cell

b)

nucleus

c)

atom

d)

electron

4.

What mass does a neutron have?

a)

1 amu

b)

0 amu

c)

-1 amu

d)

+2 amu

5.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
6.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
7.

The electron is not included in the calculations for the atomic mass because

a)

It has negative charge

b)

It is located in the outer energy levels of the atom

c)

Its mass is basically zero

d)

It attracts neutral particles

8.

An atom has 9 protons, 10 neutrons, and 9 electrons.

What is the charge on this atom?

a)

-1

b)

0

c)

+1

d)

19

e)

18

9.

An atom has 8 protons, 8 neutrons, and 10 electrons.

What is the mass of this atom?

a)

8

b)

16

c)

18

d)

-2

10.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
11.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

12.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
13.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
14.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
15.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
16.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium 
c)
Hydrogen
d)
Lithium
17.

The smallest particle of an element.

a)

Element

b)

Molecule

c)

Atom

18.

What is one way Neutrons are different from electrons?

a)

they both are negative

b)

neutrons have no charge, while electrons have a negative charge

c)

Both are in the nucleus( center of atom)

d)

Electrons are inside nucleus and neutrons are outside the nucleus.

19.

What is the atomic number?

a)

35

b)

18

c)

17

d)

52

20.

How many protons and electrons does this element have?

a)

35

b)

18

c)

17

d)

52

21.

How many neutrons does Chlorine have?

a)

18

b)

17

c)

35

d)

52

22.

What is the atomic mass of Neon?

a)

10

b)

20

c)

30

23.

How many neutrons does calcium have?

a)

20

b)

40

c)

60

d)

0

24.

What is the atomic mass of Arsenic?

a)

33

b)

107

c)

75

25.

What number indicates the protons?

a)

1

b)

2

c)

3

d)

4

26.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
27.
All matter is made of 
a)
energy 
b)
atoms 
c)
air
d)
chemistry
28.

If an atom is neutral, then the number

of protons must equal the number of?

a)

Protons

b)

Electrons

c)

Isotopes

d)

Neutrons

29.

The mass number is equal to the number

of ____ + the number of ____

a)

protons, neutrons

b)

protons, electrons

c)

neutrons, protons

d)

neutrons, electrons

30.

How do you determine the atomic number of an element?

a)

the amount of protons

b)

the amount of electrons

c)

the amount of Neutrons

31.
Which of the following best describes the Bohr model atom?
a)
It shows that electrons are evenly scattered in the atom
b)
Electrons are in the nucleus of an atom
c)
Electrons are in orbits around the nucleus
d)
It showed that electrons can be found anywhere in the atom
32.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
33.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
34.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
35.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

36.

How many neutrons are in the isotope pictured above?

a)

29

b)

34

c)

63

d)

92

37.

All matter is made of

(a)  

38.

All atoms of different elements share the same mass and properties

a)

True

b)

False

39.

What subatomic particle has the smallest mass?

a)

proton

b)

neutron

c)

electron

40.

Each atom of an element has a unique number of what subatomic particle?

(a)  

41.

Pictured below are two isotopes of Bromine. The number 35 refers to the element's ______________. 

a)

Atomic Number

b)

Mass Number

c)

Element Symbol

42.

Pictured below are two isotopes of Bromine. The "Br" refers to the ______________. 

a)

Atomic Number

b)

Mass Number

c)

Element Symbol

43.

Pictured below are two isotopes of Bromine. The numbers 79 and 81 refers to the element's ______________. 

a)

Atomic Number

b)

Mass Number

c)

Element Symbol

44.

What is the mass of a carbon atom that has 6 protons, 7 neutrons, and 6 electrons?

a)

6

b)

7

c)

13

d)

19

45.

Neutral atoms have an equal number of

a)

electrons and neutrons

b)

protons and neutrons

c)

protons and electrons

d)

protons, neutrons, and electrons

46.

An atom of tin has an atomic number of 50 and a mass number of 119. How many protons, electrons, and neutrons are found in one neutral atom of tin?

a)

50 protons, 69 electrons, 50 neutrons

b)

50 protons, 50 electrons, 69 neutrons

c)

69 protons, 50 electrons, 69 neutrons

d)

69 protons, 69 electrons, 50 neutrons

47.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
48.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
49.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

50.

An atom has:

8 Protons

7 Neutrons

6 Electrons

What is the mass number?

(a)  

51.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
52.
True or False - Protons and Neutrons have about the same mass.
a)
True - They have about the same mass
b)
False - They do not have about the same mass
53.

________________ have a positive charge, ___________________ have NO charge, and _____________________ have a negative charge.

a)

Protons, Electrons, Neutrons

b)

Neutrons, Electrons, Protons

c)

Protons, Neutrons, Electrons

d)

Electrons, Neutrons, Protons

54.

These are found outside the nucleus and have a negative charge

a)

protons

b)

neutrons

c)

electrons

d)

ions

55.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
56.

How many electrons can the first electron shell hold?

a)

1

b)

2

c)

8

d)

Unlimited

57.

How many electrons can the second and third (for our intents and purposes) electron shells hold?

a)

1

b)

2

c)

8

d)

Unlimited

58.

Which Bohr model represents Neon?

a)
b)
c)
d)
59.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
60.

What number indicates the neutrons?

a)

1

b)

2

c)

3

d)

4

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