The Atom

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What relative charge and mass does an electron have?
Mass = 1/2000 Charge = -1
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What relative charge and mass does a proton have?
Mass= 1 Charge = +1
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What relative charge and mass does a neutron have?
Mass= 1 Charge = 0
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How do you work out the number of neutrons?
Mass number - atomic number
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What must be the same in an atom to have no overall charge?
The number of protons and electrons
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Do negative ions have more or less electrons
More
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Why are ions with less electrons positive?
As protons are positively charged and there are more protons than electrons
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What are isotopes?
Isotopes are atoms of the same element with a different number of neutrons
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How can you tell if an atom is an isotope?
It has a different mass number due to more or less neutrons
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What decides the chemical properties of an atom?
It's the number and arrangement of electrons that determine the chemical properties of an element
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Why do isotopes of an atom have the same chemical properties?
They have the same configuration of electrons
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What different physical properties might an isotope have?
Densities and Rates of diffusion
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Other cards in this set

Card 2

Front

What relative charge and mass does a proton have?

Back

Mass= 1 Charge = +1

Card 3

Front

What relative charge and mass does a neutron have?

Back

Preview of the front of card 3

Card 4

Front

How do you work out the number of neutrons?

Back

Preview of the front of card 4

Card 5

Front

What must be the same in an atom to have no overall charge?

Back

Preview of the front of card 5
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