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WorksheetsAtomic Theory Revision
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
2.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
3.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
4.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
5.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
6.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
7.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
8.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
9.
Name group 1A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
noble gases
d)
halogens
10.
Name group 1A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
noble gases
d)
halogens
11.
Name group 8A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
12.
a)
Periods
b)
Groups
13.
a)
Periods
b)
Groups
14.
In a stable atom the amount of electrons is electron is equal to
a)
neutrons
b)
protons
c)
atomic mass
d)
neutrons + protons
15.
What is the charge of the electron
a)
positive
b)
no charge
c)
negative
d)
neutral
16.
The first orbital can hold a maximum of how many electrons?
a)
2
b)
3
c)
8
d)
6
17.
Which of the following elements has 18 electrons?
a)
Flourine
b)
Helium
c)
Argon
d)
Chlorine
18.
Which of the following elements has 5 valence electrons?
a)
boron
b)
phosphorus
c)
magnesium
d)
chlorine
19.
How many valence electrons does an atom of fluorine have?
a)
3
b)
5
c)
7
d)
9
e)
17
20.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
21.
What is the atomic number of this atom?
a)
8
b)
16
c)
24
d)
none of the above
22.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
23.
What is the atomic number of Nickel? (enlarge the periodic table)
a)
110
b)
28
c)
46
d)
78
24.
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
25.
If an atom has 10 electrons, how many protons does it have?
a)
0
b)
1
c)
10
d)
5
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