It is the weighted mean mass of an atom of an element compared with 1/12 the mass of an atom of carbon-12 which is taken as 12 exactly.
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Card 7
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This is the result of sharing a pair of electrons.
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Card 8
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It is the mass of an atom of an isotope of the element compared with 1/12 the mass of an atom of carbon-12 which is taken as 12 exactly.
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Card 9
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...of an ion is the energy required to remove the second electron from each unipositive gaseous ion in one mole of gaseous ions to form dipositive gaseous ions.
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Card 10
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The number of protons contained in an atom of an element.
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Card 11
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The number of particles in a mole. Its symbol is NA and is equals 6.023x20(23)
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Card 12
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It is an amount of substance and contains the same number of particles as there are atoms in 12g of carbon-12
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Card 13
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It is the ability of an atom to attract the bonding electrons in a covalent bond.
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Card 14
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It is the attraction of positive ions to delocalised electrons
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Card 15
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This is the electrostatic attraction between oppositely charged ions.
