Atomic Structure Quiz

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Which two particles are in the nucleus?
protons & neutrons
1 of 21
Which particle has a positive charge?
proton
2 of 21
Which particle has a negative charge?
electron
3 of 21
Which particle has a neutral charge?
neutron
4 of 21
Which electron shell fills first?
The one closest to the nucleus
5 of 21
What is the atomic number?
the number of protons
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What is the mass number?
proton number + neutron number
7 of 21
What are Isotopes?
same number of protons, different number of neutrons
8 of 21
Different Isotopes in chemistry act:
In exactly the same way.
9 of 21
Why do Isotopes vary in mass number?
because they have a different number of neutrons
10 of 21
Why do different isotopes act the way they do?
They have the same number of electrons
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There is a tiny fixed proportion of carbon......in all living matter.
14
12 of 21
What is the half life of the carbon used to date matter?
5730
13 of 21
What does a mass spectrometer do?
determines the mass of separate atoms.
14 of 21
Why is the instrument kept under high vacuum?
So that the air particles do not collide with ions.
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What state is the sample injected into the mass spectrometer?
gas
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What is the first stage of mass spectroscopy?
ionisation
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What is the second stage of mass spectroscopy?
acceleration
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What is the third stage of mass spectroscopy?
deflection
19 of 21
What is the final stage of mass spectroscopy?
detection
20 of 21
describe ionisation.
a beam of electrons from an electron gun knocks out electrons so that they form positive ions.
21 of 21

Other cards in this set

Card 2

Front

Which particle has a positive charge?

Back

proton

Card 3

Front

Which particle has a negative charge?

Back

Preview of the front of card 3

Card 4

Front

Which particle has a neutral charge?

Back

Preview of the front of card 4

Card 5

Front

Which electron shell fills first?

Back

Preview of the front of card 5
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