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WorksheetsMatter & Atomic Structure
Total questions: 25
Worksheet time: 9mins
What is a subatomic particle with a positive charge that is in the nucleus of an atom?
neutron
proton
electron
valence electron
What is a subatomic particle without an electric charge, located in the nucleus of an atom?
neutron
proton
electron
valence electron
What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.
neutron
proton
electron
electron cloud
What is the center of an atom containing protons and neutrons?
nucleus
neutron
proton
electron cloud
What is material that has mass and takes up space?
volume
mass
matter
density
The number of electrons in an atom is equal to ......
the number of protons
the number of neutrons
the atomic mass
What is the maximum number of electrons in the second energy level (second shell)?
18
8
32
2
What is the proton number?
the number of protons in the nucleus
the number of protons and neutrons in the nucleus
the number of neutrons in the nucleus
the number of protons in the energy levels
What is the nucleon number?
the number of protons in the nucleus
the number of protons and neutrons in the nucleus
the number of neutrons in the nucleus
the number of protons and electrons in the atom
What does the C represent?
Relative atomic mass
Proton number
element name
chemical symbol
An atom has 10 protons, 15 neutrons and 10 electrons what is its nucleon number?
20
10
25
35
How many electrons does this atom have?
2
4
6
10
The proton number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
9
10
19
28
An atom has an proton number of 15 and a nucleon number of 31. How many neutrons are there in the atom?
15
31
16
47
Which of the following determines the identity of an element?
number of protons
atomic mass
number of neutrons
number of shells
