Density: the mass of a substance per unit volume.
Down a group: increase
Across a period: increase then decrease
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| General Shape |
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| Down each group (from left to right) |
Melting and Boiling Point
Melting point: the temperature at which a substance changes from a solid to a liquid.
Boiling point: the temperature at which a substance changes from a liquid to a gas.
Down a group: increase
Across a period: increase then decrease
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| General Shape |
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| Down some groups |
Ionization Energy: the energy required to remove electrons from gaseous atoms or ions.
Down a group: decrease
Across a period: increase
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| General Shape |
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| Down each group (from left to right) |
Electronegativity
Electronegativity: a chemical property that describes the tendency of an atom or a functional group to attract electrons towards itself.
Down a group: decrease
Across a period: increase
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| General Shape |
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| Down each group (from left to right) |
Atomic Radius
Atomic Radius: a measure of the size of the atom.
Down a group: increase
Across a period: decrease
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| General Shape |
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| Down each group (from left to right) |
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