GCSE-Chemistry-Atoms, Elements, Compounds and Mixtures

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A substance formed by the chemical union of two or more elements.
COMPOUND
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Electrically charged particle, formed when an atom or molecule gains or loses electrons.
ION
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Which element has the chemical formula Na?
SODIUM
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A collection of two or more atoms held together by chemical bonds.
MOLECULE
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A substance made of one type of atom only.
ELEMENT
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What is the proton number of Magnesium?
12
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The smallest part of an element that can exist.
ATOM
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What group on the periodic table is chlorine in
7
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When a negative ion joins with a positive ion
IONIC COMPOUND
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Two or more substances that are not joined together. The substances can be elements, compounds, or both.
MIXTURE
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Which element has the chemical formula K?
POTASSIUM
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Other cards in this set

Card 2

Front

Electrically charged particle, formed when an atom or molecule gains or loses electrons.

Back

ION

Card 3

Front

Which element has the chemical formula Na?

Back

Preview of the front of card 3

Card 4

Front

A collection of two or more atoms held together by chemical bonds.

Back

Preview of the front of card 4

Card 5

Front

A substance made of one type of atom only.

Back

Preview of the front of card 5
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