464672
Description
Quiz by jessicatam, updated more than 1 year ago
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Created by jessicatam
almost 11 years ago
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Question 1
Question
The nucleus ..
Answer
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is in the middle of the atom and contains protons and neutrons. It has a positive charge.
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The total number of protons and neutrons.
Question 2
Question
Electrons ...
Answer
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...move around the nucleus in electron shells and is negatively charged. Electrons are tiny!
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...are useful for the hydrogenation of alkenes.
Question 3
Question
The mass of a proton is ...
Answer
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1
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2
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3
Question 4
Question
The mass of a neutron is ...
Answer
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0
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1
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3
Question 5
Question
The mass of an electron is ...
Answer
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5
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0.5
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0.0005
Question 6
Question
The charge of a proton is ...
Answer
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+2
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0
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+1
Question 7
Question
The charge of a neutron is ...
Answer
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0
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1
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2
Question 8
Question
The charge of an electron is...
Answer
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1
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-1
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0
Question 9
Question
Who concluded from his experiments that atoms weren't solid spheres?
Answer
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J J Thomson
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John Dalton
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Rutherford
Question 10
Question
Bohr suggested that electrons can only exist in _?_, or _?_.
Answer
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nuclear atom | particle
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fixed orbits | energy
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fixed orbits | shells
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