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Atomists and Atoms test review

Total questions: 70

Worksheet time: 42mins

Name
Class
Date
1.

What did Rutherford discover about atoms?

a)

An atom is always negatively charged.

b)

An atom is mostly empty space, but has a dense positively charged center(nucleus).

c)

An atom is always positively charged.

d)

All particles will pass straight through gold foil with no change in path.

2.

What is a positively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

3.

What is a negatively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

4.

What is a particle with no charge?

a)

neutron

b)

electron

c)

proton

d)

atom

5.

Who discover the electron?

a)

Dalton

b)

Rutherford

c)

Thomson

d)

Bohr

6.

Who proposed a model with electrons moving in specific layers?

a)

Dalton

b)

Rutherford

c)

Bohr

d)

Thomson

7.

What does atom mean?

a)

small

b)

visible

c)

indivisible

d)

particle

8.
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
9.

Who was considered as one of the founders of the ancient atomist theory?

a)

Aristotle

b)

Parmenides

c)

Empedocles

d)

Democritus

10.

Who discovered the neutron?

a)

JOSEPH JOHN THOMSON

b)

ERNEST RUTHERFORD

c)

NEILS BOHR

d)

JAMES CHADWICK

11.

It is the smallest particle of an element

a)

PROTON

b)

ELECTRON

c)

NEUTRON

d)

ATOM

12.

Where are electrons located in an atom?

a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
13.

The total number of protons and neutrons in the nucleus of an atom

a)

Atomic Number

b)

Mass Number

c)

Atomic Theory

d)

Electron Cloud

14.

The center of an atom where its neutrons and protons are is called the _____________.

a)

nucleus

b)

electron cloud

c)

center

15.

Atoms are made up of ________________

a)

energy

b)

electrons

c)

subatomic particles

d)

gasses

16.

The following subatomic particles are in the nucleus.

a)

Protons and nucleus.

b)

Protons and neutrons.

c)

Protons and electrons

d)

Neutrons and electrons

17.

The mass number of an atom is the mass of ______ + _____

a)

protons + neutrons

b)

protons + electrons

c)

neutrons + nucleus

d)

protons + nucleus

18.

The mass number is always larger than the atomic number (exept for Hydrogen).

a)

TRUE

b)

FALSE

19.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
20.

Substances that have only one kind of atom are called:

a)

elements

b)

nitrogen

c)

electrons

d)

nucleus

21.

Electrons have a _____ charge.

a)

neutral

b)

negative

c)

positive

d)

both positive and negative

22.

_____ is what scientists think atoms are like.

a)

Chemistry

b)

The box

c)

The atomic structure

d)

The atomic theory

23.

The _____ is based on the number of protons in the nucleus of the atom.

a)

atomic structure

b)

periodic table of the elements

c)

atomic number

d)

atomic mass

24.

What subatomic particle is represented by this charge (-):

a)

neutron

b)

proton

c)

electron

25.

What subatomic particle is represented by this symbol (+):

a)

neutron

b)

proton

c)

electron

26.

Why do the electrons surround the nucleus?

a)

the negative electrons are attracted to the neutral neutrons

b)

the negative electrons are repelled by the neutral neutrons

c)

the negative electrons are attracted to the positive protons

d)

the negative electrons are repelled by the positive protons

27.

Which of the following correctly lists the pair of subatomic particles that balance the charge of the atom?

a)

Protons and neutrons

b)

Electrons and neutrons

c)

Protons and electrons

d)

Electrons and ions

28.
Which is an electron?
a)
A
b)
B
c)
C
29.

What is the correct formula for calculating how many neutrons are in an atom?

a)

Protons + Electrons= Neutrons

b)

Atomic mass - Atomic number= Neutrons

c)

Atomic mass + Atomic number = Neutrons

d)

Atomic mass - Protons = Neutrons

30.

How many neutrons does nitrogen have?

a)

7

b)

14

c)

0

d)

6

31.

What is the ATOMIC NUMBER in this element tile?

a)

28

b)

Ni

c)

Nickel

d)

58.693

32.

What is the CHEMICAL SYMBOL in this element tile?

a)

10

b)

Ne

c)

Neon

d)

20.18

33.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
34.
How does the size of a proton compare to the size of a neutron?
a)
larger
b)
smaller
c)
equal
35.
An atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
36.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
37.

Find the element:

Protons: 8

Neutrons: 9

Electrons: 10

a)

Carbon (C)

b)

Oxygen (O)

c)

Hydrogen (H)

d)

Titanium (Ti)

38.

What is the atomic number of the neutral atom represented by the Periodic Table block above?

a)

18

b)

19

c)

39

d)

40

39.

The image shows the periodic grid of potassium. How many electrons are found in the potassium atom?

a)

19

b)

20

c)

39

d)

40

40.

•What elementary particles are the building blocks for protons and neutrons?

a)

•Quarks

b)

• Leptons

c)

• Photons

d)

• Gluons

41.
What is the atomic number of this atom?
a)
4
b)
5
c)
9
d)
none of the above
42.

Atoms of the same element which have a different number of neutrons are called _________________.

a)

ions

b)

isotopes

c)

quarks

d)

molecules

43.

If an atom has 12 neutrons and 11 protons, what is its atomic mass?

(a)  

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.

How many neutrons does calcium have?

a)

20

b)

40

c)

60

d)

0

48.

Which subatomic particle determines the identity of an element?

a)

protons

b)

neutrons

c)

electrons

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 is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

52.

How many electrons are in Nitrogen? Use the picture to the left.

(a)  

53.

What is the image a picture of?

a)

Einstein Model

b)

Bohr Model

c)

Pierre Model

d)

Newton Model

54.

What is the rounded atomic mass of Calcium?

(a)  

55.

True or False: The atomic number is the same number of neutrons.

a)

True

b)

False

56.

True or False: Protons and Neutrons are always the same number

a)

True

b)

False

57.

True or False: Protons and Electrons are equal to the atomic number.

a)

True

b)

False

58.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
59.

How many electrons total?

a)

5

b)

6

c)

7

d)

8

60.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
61.

Name this element.

a)

boron

b)

sodium

c)

magnesium

d)

lithium

e)

beryllium

62.

How many electrons can be in the 2nd energy level hold?

a)

1

b)

2

c)

4

d)

8

63.

How many electrons does the first shell hold?

a)

1

b)

2

c)

4

d)

8

64.

How many energy levels does Oxygen have?

a)

16

b)

8

c)

2

d)

6

65.

If both protons and neutrons are found in the nucleus, why is it positive?

a)

The reason it is positive is because neutrons have a positive charge and protons have a negative charge.

b)

The reason it is positive is because neutrons have a negative charge and protons have a positive charge

c)

The reason it is positive is because neutrons have no charge and protons have a positive charge.

d)

The reason it is positive is because neutrons have no charge and protons have a negative charge

66.

In ascending order, the maximum number of electrons each shell can hold is

a)

2, 8, 8, 32

b)

2, 8, 18, 32

c)

2, 6, 8, 32

d)

2, 3, 4, 5

67.

Boron (B) has 5 electrons. Its electron configuration is

a)

5

b)

2, 2, 1

c)

1, 2, 2

d)

2, 3

68.

The electron configuration of Nitrogen is

a)

0, 2, 5

b)

N, 2, 5

c)

7

d)

2, 5

69.

The electron configuration of sulfur is

a)

2, 8, 6

b)

2, 8, 8

c)

3, 8, 6

d)

0, 2, 8

70.

Aluminium has 13 electrons. How many electron shells would make up the atom?

a)

1

b)

2

c)

3

d)

4

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