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WorksheetsUnit 2 Review
Total questions: 20
Worksheet time: 11mins
Which particle has a positive electrical charge?
proton
neutron
electron
Which particles make up the nucleus of an atom? (you can choose more than one answers)
proton
electron
neutron
Protons have a negative electrical charge
true
false
Electrons are found in the nucleus of the atom
true
false
Neutrons have the same mass as protons do
true
false
Who discovered the electron?
Thompson
Rutherford
Chadwick
Newton
Who did gold foil experiment for the first time?
Thompson
Rutherford
Chadwick
Newton
What are the 3 subatomic particles of an atom?
shell, proton, electron
cloud, neutrons, protons
nucleus, protons, electrons
protons, neutrons, electrons
Which subatomic particle has a negative charge?
proton
neutron
electron
Which subatomic particle has a neutral or no charge?
proton
neutron
electron
What is "a" in the picture?
Proton
Electron
Neutron
What is "b" in the picture?
Proton
Electron
Neutron
What is "c" in the picture?
Proton
Electron
Neutron
What is the atomic mass of an atom with 32 protons and 31 neutrons?
31
32
62
63
How many neutrons are there for an atom with a mass of 20 and 11 protons?
9
11
20
31
What is the identity of the atom?
Aluminum
Silicon
Cobalt
Zirconium
Which is the best nuclear symbol for a potassium atom with 21 neutrons?
This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?
3
4
5
How many valence electrons does Lithium (Li) have?
8
1
5
2
