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WorksheetsAtomic Structure
Total questions: 16
Worksheet time: 8mins
Which structure is the nucleus?
A
B
C
D
E
Which structure is the proton?
A
B
C
D
E
Which structure is the neutron?
A
B
C
D
E
Which structure is "A" pointing to?
Nucleus
Proton
Energy Level
Electron
Which structure is the electron?
A
B
C
D
E
The mass of this atom is _______________.
1 (electrons - protons)
11 (electron + protons)
15 (electron + Protons + neutrons)
9 (protons + neutrons)
Is this a positive or negative ion?
positive, because there are more protons.
negative, because there are more electrons.
Protons have
a negative charge AND are located in the nucleus.
a positive charge AND are located in the nucleus.
a positive charge AND are located in energy levels outside the nucleus.
zero charge and are located in the nucleus.
Neutrons have
no charge (neutral) and are located in energy levels.
a positive charge and are located in the nucleus.
no charge (neutral) and are located in the nucleus.
a negative charge and are located in energy levels.
Electrons have
no charge (neutral) and are located in energy levels.
a positive charge and are located in the nucleus.
no charge (neutral) and are located in the nucleus.
a negative charge and are located in energy levels.
The nucleus has a
negative charge because that is where the electrons are.
zero charge because that is where the electrons are.
positive charge because that is where the protons are.
None of the above.
Electrons are not included in calculating the mass of an atom because
electrons have NO mass.
electrons are negative.
the electrons' mass is insignificant.
protons cancel out the mass of the electrons.
This Hydrogen atom is neutral because
the number of protons and neutrons are equal.
the number of protons and electrons are equal.
the number of neutrons and electrons are equal.
None of the above.
This Lithium ion is
positive because it has more electrons than protons.
positive because it has more protons than electrons.
negative because it has more electrons than protons.
negative because it has more protons than electrons.
If an atom (neutral) has 10 protons in the nucleus, how many electrons will it have?
5
10
15
20
The atomic number is equal to the number of __________ in the nucleus.
neutrons
protons
electrons
