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Atoms Ions and Isotopes Review

Total questions: 66

Worksheet time: 49mins

Name
Class
Date
1.

An atom that has gained or lost electrons in an attempt to become stable/bond with another atom.

a)

Normal/Neutral Atom

b)

Ion

c)

Isotope

2.

A negatively charged ion that has gained electrons to satisfy the octet rule (metals do this)

a)

Anion

b)

Cation

c)

Neutral Atom

d)

Isotope

3.

A positively charged ion that has lost electrons to satisfy the octet rule (non-metals do this)

a)

Anion

b)

Cation

c)

Neutral Atom

d)

Isotope

4.

Atoms of the same element that have different mass than expected because they have a different number of neutrons.

a)

Neutral Atom

b)

Ion

c)

Isotope

d)

Cation

5.

If an ion has a positive charge you would __________ the charge number from the number of protons to figure out how many electrons there are.

a)

subtract

b)

add

c)

multiply

d)

divide

6.

If an ion has a negative charge you would __________ the charge number to the number of protons to figure out how many electrons there are.

a)

Add

b)

Subtract

c)

Divide

d)

Multiply

7.

If an atom has 9 protons and 10 electrons it has a charge of ____.

a)

0

b)

-1

c)

+1

d)

-2

8.

If an atom has 4 protons and 2 electrons it has a charge of ____.

a)

0

b)

-2

c)

+2

d)

+1

9.

If an atom has a charge of +3 and an atomic number of 5 it should have _______ electrons.

a)

1

b)

2

c)

3

d)

4

10.

If an atom has a charge of -2 and an atomic number of 16 it should have _______ electrons.

a)

14

b)

16

c)

18

d)

20

11.

If an atom has a charge of 0 (neutral) and an atomic number of 8 it should have ____ electrons.

a)

0

b)

8

c)

7

d)

9

12.

To figure out the mass of an atom based on its subatomic particles you would add ______ & ________.

a)

Protons & Electrons

b)

Protons & Neutrons

c)

Neutron & Electrons

13.

How many neutrons are in an atom of carbon-14?

a)

6

b)

8

c)

10

d)

14

14.

How many protons does this isotope of titanium have?

a)

22

b)

26

c)

48

d)

70

15.

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

a)

2

b)

34

c)

36

d)

40

16.

Write the hyphen notation for the isotope that has 39 protons and 50 neutrons.

a)

Yttrium-11

b)

Tin-39

c)

Tin-89

d)

Yttrium-89

17.
Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208.  The average atomic mass of lead is 207.2.  Which isotope of lead is likely to be the most abundant.
a)
204
b)
206
c)
207
d)
208
18.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

19.

What is the atomic number of Barium, Ba? (enlarge the periodic table)

a)

20

b)

38

c)

56

d)

88

20.

How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)

a)

Sodium has 1 proton.

b)

Sodium has 3 protons.

c)

Sodium has 11 protons

21.

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

a)

ions

b)

isotopes

c)

quarks

d)

molecules

22.

Which subatomic particle has a negative charge in the atom?

a)

proton

b)

neutron

c)

electron

d)

quark

23.

How many neutrons does C-14 contain? (tap to enlarge the image)

a)

6

b)

7

c)

14

d)

8

24.

ALL atoms of the same element have:

a)

same number of proton

b)

same number of nucleon

c)

different number of neutron

d)

different number of electron

25.
How many neutrons does the isotope below have?     89 36Kr
a)
53
b)
36
c)
89
d)
125
26.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
27.
The number of protons is equal to 
a)
the atomic number
b)
the number of neutrons
c)
the energy levels
d)
the periodic table groups
28.

What is the atomic number of Fe? (click to see image)

a)

26

b)

55.845

c)

56

d)

30

29.
a)
2
b)
8
c)
3
d)
13
30.
a)
12
b)
7
c)
8
d)
14
31.

Valence electrons are in the...

a)

Innermost energy level of the atom.

b)

Middle energy level of the atom.

c)

Outermost energy level of the atom.

d)

energy levels of the atom.

32.

How many valence electrons does Helium have?

a)

1

b)

2

c)

3

d)

4

e)

5

33.
When an atom loses a valence electron, it becomes a(n) _____________ ion.
a)
positive
b)
negative
c)
neutral
d)
polyatomic
34.
Positive ions form when atoms _________ valence electrons.
a)
lose
b)
gain
c)
share
d)
gain or share
35.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
36.
When an atom LOSES an electron it is a
a)
cation
b)
anion
37.
What is the number of neutrons?
a)
34
b)
79
c)
45
d)
35
38.
What is the net charge on the element shown above? 
(Calcium - atomic number 20)
a)
cation +1 charge
b)
cation +2 charge
c)
anion -1 charge
d)
anion -2 charge
39.
Which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
40.

An atom that has gained or lost electrons in an attempt to become stable/bond with another atom.

a)

Normal/Neutral Atom

b)

Ion

c)

Isotope

41.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
42.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
43.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
44.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom
45.

What is a representation of an ion?

a)

Li

b)

Na-22

c)

O-2

46.

What is the mass number of bromine?

a)

35

b)

45

c)

80

d)

79.904

47.

How many neutrons does this bromine atom have?

a)

35

b)

45

c)

80

48.

How many electrons does this magnesium ion have?

a)

24

b)

12

c)

10

d)

14

49.

How many protons, neutrons, and electrons?

a)

proton = 16, neutron = 8, electron = 10

b)

proton = 8, neutron = 16, electron = 8

c)

proton = 8, neutron = 8, electron = 10

d)

proton = 6, neutron = 2, electron = 6

50.
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
51.
Which subatomic particle has a negative (-) charge?
a)
Proton
b)
Electron
c)
Neutron
52.
Which subatomic particle has a neutral or no charge?
a)
Proton
b)
Electron
c)
Neutron
53.
Which two subatomic particles make up the nucleus of an atom?
a)
Protons and Electrons
b)
Neutrons and Electrons
c)
Electrons and Protons
d)
Protons and Neutrons
54.

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

55.

What are any of the various self-contained units of matter or energy that are fundamental parts of all matter. These particles include electrons, protons, and neutrons.

a)

subatomic particles

b)

elements

c)

nucleus

d)

electron cloud

56.

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

a)

neutron

b)

proton

c)

electron

d)

valence electron

57.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
58.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
59.

Which part of an atom is used to identify it?

a)

number of protons

b)

number of neutrons

c)

number of electrons

60.
Water is an element
a)
true
b)
false
61.

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

62.

Which of the following is the nucleus?

a)

A

b)

B

c)

C

d)

D

63.

How many electrons fill the first shell?

a)

2

b)

4

c)

8

d)

16

64.

How many electrons fill the second shell?

a)

2

b)

4

c)

8

d)

16

65.

Explain the structure of the atom

a)

There is a tiny nucleus and a large electron cloud filled with empty space

b)

There is a tiny nucleus and a tiny electron cloud

c)

The nucleus is bigger than the electron cloud

d)

The electron cloud is made of protons and electrons, the nucleus has neutrons

66.

In the electron cloud model of the atom, what does the cloud represent?

a)

the limits of the electron location

b)

the probability of the electron location

c)

the average distance between the electron and the nucleus

d)

the minimum distance between the electron and the nucleus

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