Chemistry Definitions

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  • Created by: Heather
  • Created on: 04-10-14 16:48
Acid
A proton Donor
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Dative Covalent (co-ordiante) bond?
A shared pair of electrons where both electrons that are shared are from one of the bonding atoms only,
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Electronegativity
The ability of an atom to attract the bonding electrons in a covalent bond
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First Ionisation Energy
The energy required to remove one eletron from each atom in 1 mole of gaseous atoms to form 1 mole of gaseous 1+ atoms,
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Successive ionisation Energy
The energy required to remove each electron in turn,
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Disproportionation
The oxidation and reduction of the same element in a redox reaction
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Allotropes
Different physical forms of the same element where atoms are arranged differently e.g. carbon has three allotropes- Diamond, graphite and fullerences
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Atom economy
The efficiency of a chemical reaction by comparing the total number of atoms in the product with the total number of atoms in the reactants,
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Atomic orbital
A region of space around an atomic nucleus with a high possibilty (95%) of finding an electron,
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polar
Describes a molecules in which the charge is not symetrically distributed so that one area is slightly positve and theother slightly negaitve charged,
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Other cards in this set

Card 2

Front

Dative Covalent (co-ordiante) bond?

Back

A shared pair of electrons where both electrons that are shared are from one of the bonding atoms only,

Card 3

Front

Electronegativity

Back

Preview of the front of card 3

Card 4

Front

First Ionisation Energy

Back

Preview of the front of card 4

Card 5

Front

Successive ionisation Energy

Back

Preview of the front of card 5
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