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WorksheetsAtoms Review
Total questions: 20
Worksheet time: 15mins
oxygen has 8 protons, what is its atomic number?
3
5
8
27
which particle has a positive charge?
neutron
proton
electron
shells
choose the particle that has no charge...
neutron
electron
proton
carbon
which particles makeup the nucleus of an atom?
only electrons
only protons
electrons and neutrons
protons and neutrons
The charge of the nucleus of all atoms or ions usually is...
negative
neutral
positive
sometimes positive sometimes negative
What is the atomic number of this atom?
3
1
4
7
what is the atomic mass of this atom?
1
3
4
7
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number?
25
20
35
10
7. What does the C represent?
atomic mass
element name
chemical symbol
atomic number
What does the 6 represent?
atomic number
element name
chemical symbol
atomic mass
2. What is the mass number defined as?
number of protons
number of protons and neutrons
number of electrons
none of the above
What is the atomic number of this atom?
9
4
5
none of the above
8.
16
24
none of the above
24
14
16
none of the above
What is the atomic number of this nucleus?
3
1
4
7
the atomic number of lithium is...
6.94
3
23
65
The atomic number of Titanium is...
48.867
23
22
20
what is the atomic mass of this atom?
16
34
8
none of the above
what does the number "19" represent?
chemical symbol
atomic number
atomic mass
name of the element
91.22 is the...
atomic number
chemical name
average of atomic mass
what is the atomic mass of this element?{average}
12.011
6
18.011
none of the above
