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WorksheetsBasic Chemistry Review
Total questions: 12
Worksheet time: 7mins
What element contains 8 protons?
Argon
Nitrogen
Oxygen
Uranium
What element contains 42 protons?
Gold
Iron
Oxygen
Molybdenum
What element is this atom?
Copper
Carbon
Helium
Plutonium
Which of the following would be true about a neutral atom of sodium? (there is more than one right answer).
It would contain 22 protons
It would contain 11 protons
It would contain 22 electrons
It would contain 11 electrons
What charge do neutrons have?
Positive
Negative
Neutral
Depends on their environment
What charge do protons have?
Positive
Negative
Neutral
Depends on their environment
What charge do electrons have?
Positive
Negative
Neutral
Depends on their environment
How many electrons does this element have it its outer shell?
7
2
5
18
What is the valence shell of an atom?
The electron shell closest to the nucleus
The electron shell farthest from the nucleus
The electron shell that has the most electrons in it.
The electron shell that is empty.
Generally speaking, how many electrons do atoms "want" to have in their valence shell?
8
1
14
22
Look at this image of a water molecule, what do you notice about the electrons?
There are 15 of them, half in the hydrogen and half in the oxygen.
They are pink and purple.
They are labelled "H" and "O"
They are being shared between hydrogen and oxygen
Including the shared electrons, how many electrons are in oxygen's valence shell?
2
6
8
10
