AS Chem - Periodic Table

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Define an element
A substance containing only one type of atom
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Define a compound
More than one type of atom chemically bonded (with ionic or covalent bonds) e.g. FeSO4
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Define a mixture
Two or more substances mixed that are not chemically bonded together. e.g. sodium chloride (NaCl) in water (H2O)
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Define a molecule
A small number of atoms held together with covalent bonds. e.g. O2 or CO2
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Define a particle
A general term used to describe any small portion of matter (e.g. atom, molecule etc.).
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Define an atom
The smallest component of an element. e.g. Fe, Br, Ag
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How are the elements arranged?
By increasing atomic (proton) number
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Explain why elements in the same group have similar chemical properties
Elements in the same group have the same number of outer shell electrons only outer shell electrons participate in chemical bonding
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Other cards in this set

Card 2

Front

Define a compound

Back

More than one type of atom chemically bonded (with ionic or covalent bonds) e.g. FeSO4

Card 3

Front

Define a mixture

Back

Preview of the front of card 3

Card 4

Front

Define a molecule

Back

Preview of the front of card 4

Card 5

Front

Define a particle

Back

Preview of the front of card 5
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