Chemistry

Revision notes on Chemistry 

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Isotopes
Atoms of the same elements with different masses are called isotopes
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Ionic Bonding
When a metal reacts with a non-metal, the metal atoms lose electrons and become positive ions, the non-metal atoms gain electrons and become negative ions.
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Covalent Bonding
When atoms of two non-metals combine, they share electrons to achieve noble gas electronic structures, which are stable.
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Alloys
Are mixtures of two or more metal elements.
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Chomatography
Paper chomatography shows that the colourings in food are those listed on the label.
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Other cards in this set

Card 2

Front

When a metal reacts with a non-metal, the metal atoms lose electrons and become positive ions, the non-metal atoms gain electrons and become negative ions.

Back

Ionic Bonding

Card 3

Front

When atoms of two non-metals combine, they share electrons to achieve noble gas electronic structures, which are stable.

Back

Preview of the back of card 3

Card 4

Front

Are mixtures of two or more metal elements.

Back

Preview of the back of card 4

Card 5

Front

Paper chomatography shows that the colourings in food are those listed on the label.

Back

Preview of the back of card 5

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