Key words

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  • Created by: Grace746
  • Created on: 04-11-14 18:54
Elements
An element is a substance that contains only one type of atom and cannot be broken down into anything simpler
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Compound
Substance made up with two or more elements chemically joined together
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Mixture
Two or more substances that are usually easy to separate
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Boiling point
Temperature at which a substance changes from a liquid to a gas
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Melting Point
temperature at which a substance changes from a solid to a liquid
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Atomic Number
Number of protons (or electrons)
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Relative atomic mass
Number of protons PLUS neutrons
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Hydrated
Hydrated salt contains water crystallisation
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Anhydrous
Contains no water
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Isotopes
Isotopes are atoms of the same element which have the same number of protons but different number of neutrons
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Atom
Smallest part of an element which can exist for example, copper metal is composed of copper atoms
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Ionic bonding
bonding which occurs between metals and non metals and non metals for example, magnesium metal reacts with the non metals oxygen to produce magnesium oxide
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Convalent bonding
bonding that takes place between non metals eg hydrogen combinding with oxygen to produce water
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Metallic
Bonding with is formed between the atoms of a metal for example, copper
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Malleable
a metal can be bent and hammered into shape
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Ductile
Metal can be drawn into wire
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Other cards in this set

Card 2

Front

Substance made up with two or more elements chemically joined together

Back

Compound

Card 3

Front

Two or more substances that are usually easy to separate

Back

Preview of the back of card 3

Card 4

Front

Temperature at which a substance changes from a liquid to a gas

Back

Preview of the back of card 4

Card 5

Front

temperature at which a substance changes from a solid to a liquid

Back

Preview of the back of card 5
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