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Worksheets8.5A Review Atomic Structure
Total questions: 45
Worksheet time: 11hrs 15mins
Name
Class
Date
1.
What is atomic number?
a)
Number of protons in an atoms
b)
Number of neutrons in an atom
c)
Mass of an atom
d)
Charge on an atom
2.
Which subatomic particles are found in the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons, Neutrons and Electrons
3.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
4.
What mass does a neutron have?
a)
1
b)
0
c)
-1
d)
+2
5.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
6.
Atoms of the same element must always have the same number of _________
a)
electrons
b)
neutrons
c)
isotopes
d)
protons
7.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
8.
Which particle is negatively charged?
a)
proton
b)
atom
c)
neutron
d)
electron
9.
Referring to the table, what is the relative mass of an electron?
a)
5
b)
1
c)
0.5
d)
0.0005
10.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
11.
The middle of the atom, which contains protons and neutrons, is called _____
a)
the shell
b)
the nucleus
c)
the cell
d)
the control center
12.
The nucleus contains _____
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
electrons and neutrons
13.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
14.
How many protons are in Carbon (C)?
a)
6
b)
12
c)
1
d)
18
15.
How many protons are in Gold
a)
79
b)
197
c)
118
d)
276
16.
An atom of a certain element has 53 protons, 53 electrons and a mass number of 127.
How many neutrons are in this atom?
a)
64
b)
74
c)
106
d)
180
17.
Nitrogen has a mass of 14 and 7 protons. How many neutrons does nitrogen have?
a)
21
b)
14
c)
7
d)
8
18.
What do the letters in M-A=N represent?
a)
mass number, atomic number, nucleus
b)
atomic mass, atomic number, neutrons
c)
mass number, atomic mass, neutrons
d)
atomic mass, atomic number, nucleus
19.
What is the mass number for this element?
a)
12
b)
8
c)
7
d)
6
20.
How many electrons are in this element?
a)
39
b)
19
c)
20
d)
21
21.
How many neutrons does the element with atomic number 6 contain? (tap to enlarge the image)
a)
6
b)
7
c)
14
d)
8
22.
If an atom has 10 electrons, how many protons does it have?
a)
0
b)
1
c)
10
d)
5
23.
An atom of Carbon has ________ electrons and _________ neutrons
a)
13, 13
b)
6, 7
c)
7, 7
d)
6, 6
24.
What is the atomic number of Nickel? (enlarge the periodic table)
a)
110
b)
28
c)
46
d)
78
25.
How many protons are in a sodium atom? (tap to enlarge the periodic table)
a)
Sodium has 1 proton.
b)
Sodium has 3 protons.
c)
Sodium has 11 protons
26.
How many protons are in a sodium atom? (tap to enlarge the periodic table)
a)
Sodium has 1 proton.
b)
Sodium has 3 protons.
c)
Sodium has 11 protons
27.
An element has the mass number 12 and atomic number 6. The number of neutrons in it is:
a)
6
b)
10
c)
4
d)
8
28.
If an atom has 10 electrons, how many protons does it have?
a)
0
b)
1
c)
10
d)
5
29.
What is the mass number of this atom?
a)
9
b)
10
c)
19
d)
27
30.
What is the mass number of this atom?
a)
1
b)
2
c)
3
d)
4
31.
What is the atomic mass of Neon?
a)
10
b)
30.18
c)
10.18
d)
20.18
32.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
33.
How many neutrons does a Hydrogen atom have?
a)
1
b)
2
c)
3
d)
0
34.
What does the 6 represent above the C
a)
Symbol
b)
Name
c)
Mass Number
d)
Atomic Number
35.
Atomic mass - Atomic Number =
a)
protons
b)
neutrons
c)
electrons
d)
Average Mass
36.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
37.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
38.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
39.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
40.
Which of the following is a subatomic particle with no charge that is found in the nucleus of an atom?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
41.
The sum of the protons and neutrons in the nucleus of an atom
a)
Atomic Number
b)
Compound
c)
Electrons
d)
Mass Number (also called Atomic Mass)
42.
What determines where an element is located on the periodic table?
a)
its atomic mass
b)
its atomic number
c)
its number of electrons
d)
they're arranged alphabeticaly
43.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
44.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
45.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
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