Atomic Structure Quiz

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  • Created by: mm2004
  • Created on: 10-09-18 20:06
A nucleus contains...
Protons and neutrons
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What is the atomic number?
Number of protons in an atom
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What is the mass number?
Number of protons and neutrons
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What is an isotope?
A variant of an element with the same number of protons but a different number of neutrons
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Isotopes of an element have the same atomic number but different mass number. True or false?
True
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What are ions?
Charged particles that form when atoms lose or gain electrons
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Positively charged ions form when...
Electrons are lost
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Why are most atoms neutral?
Because they have an equal number of protons and electrons
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What is the radius of an atom?
1 × 10-10 m
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What is the radius of a nucleus?
1 x 10-14
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How can you calculate the number of neutrons in a particle?
mass number - atomic number
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Other cards in this set

Card 2

Front

What is the atomic number?

Back

Number of protons in an atom

Card 3

Front

What is the mass number?

Back

Preview of the front of card 3

Card 4

Front

What is an isotope?

Back

Preview of the front of card 4

Card 5

Front

Isotopes of an element have the same atomic number but different mass number. True or false?

Back

Preview of the front of card 5
View more cards

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