Model of an Atom

  • Created by: lordnelly
  • Created on: 19-06-18 18:57
Atom
the smallest particle of a chemical element that can exist
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Element
each of more than 100 substances that can't be chemically broken down into simpler substance. each element is distinguished by atomic nummber
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Compound
a thing that is composed of 2 or more seperate elements
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Mixture
a combination of different things in which the component elements are individually distinct
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What charge does a proton have?
+1
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What charge does an electron have?
-1
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What charge does a neutron have?
0
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What is the relative mass of a proton?
1
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What is the relative mass of an electron?
1/2000
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What is the relative mass of a neutron?
1`
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Atomic mass is ....
protons and neutrons
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Atomic number ....
protons only
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What are protons equal with?
electrons
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Are all atoms neutral or charged?
neutral
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Are all ions neutral or charged?
charged
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Isotope
a form of the same element that contains equal number of protons but different number of neutrons
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What did James Chadwick discover?
neutrons
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What was Thomson's model of an atom?
Plum pudding model
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Relative atomic mass
the average mass of an element taking into account the different masses of isotopes
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Other cards in this set

Card 2

Front

Element

Back

each of more than 100 substances that can't be chemically broken down into simpler substance. each element is distinguished by atomic nummber

Card 3

Front

Compound

Back

Preview of the front of card 3

Card 4

Front

Mixture

Back

Preview of the front of card 4

Card 5

Front

What charge does a proton have?

Back

Preview of the front of card 5
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