The number of protons and neutrons in the nucleus of an atom
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Isotopes
Atoms of the same element; same number of protons, different number of neutrons
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Relative Isotopic Mass
The mass of an isotope relative to 1/12th the mass of an atom of carbon-12
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Relative Atomic Mass
The weighted average mass of all the isotopes relative to 1/12th the mass of an atom of carbon-12
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Ionisation Energy
The energy required to remove one mole of electrons from one mole of atoms in the gaseous state
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Relative Molecular Mass
The mass of a molecule of the compound relative to 1/12th the mass of an atom of carbon-12
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Relative Formula Mass
The mass of one formula unit of an ionic compound relative to 1/12th the mass of an atom of carbon-12
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Mole
The amount of substance that contains as many particles as there are in exactly 12g of carbon-12
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Empirical Formula
The simplest whole number ratio of atoms of each element present in a molecule
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Molecular Formula
The actual number of atoms of each element present in a molecule
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Metallic Bonding
The attraction between delocalised outer shell electrons and positive metal ions in a lattice
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Ionic Bonding
The electrostatic attraction between oppositely charged ions in a lattice
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Covalent Bonding
A shared pair of electrons
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Dative Covalent Bonding (Co-ordinate)
A covalent bond in which both electrons of the shared pair come from the same atom
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Electronegativity
The power of an atom to attract the pair of electrons in a covalent bond
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Structural Formula
Shows how the atoms in a molecule are arranged
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Displayed Formula
Shows all the atoms and bonds in a molecule
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Skeletal Formula
Shows the shape of the carbon skeleton
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Homologous Series
A family of compounds containing same functional group and same general formula
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Functional Group
Group of atoms which gives an organic compound its particular chemical formula
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Hydrocarbons
Compounds containing carbon and hydrogen atoms only
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Saturated Hydrocarbons
Contain only single carbon to carbon bonds
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Unsaturated Hydrocarbons
Contain one of more carbon to carbon double bonds
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Structural Isomer
Compounds with the same molecular formula but a different structural formula
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Chain Isomers
Compounds have the same molecular formula but their structures have the hydrocarbon chain arranged differently
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Position Isomers
Compounds with the same functional group in a different position
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Functional Group Isomers
Compounds with the same molecular formula but a different functional group
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Enthalpy
The heat energy stored in a chemical system
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Enthalpy Change
The heat energy change at constant pressure
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Activation Energy
The minimum energy required to start a reaction by the breaking of bonds
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Mean Bond Enthalpy
The energy required to break a covalent bond, averaged for that type of bond in a range of different compounds
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Standard Enthalpy Of Formation
The enthalpy change that occurs when one mole of a compound is formed from its constituent elements with all reactants and products in their standard stated
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Standard Enthalpy of Combustion
The enthalpy change that occurs when one mole of a compound burns completely in oxygen with all reactants and products at 298K and 100KPa
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Periodicity
The regular repeating patterns in the chemical and physical properties of elements
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Other cards in this set
Card 2
Front
The number of protons and neutrons in the nucleus of an atom
Back
Mass Number
Card 3
Front
Atoms of the same element; same number of protons, different number of neutrons
Back
Card 4
Front
The mass of an isotope relative to 1/12th the mass of an atom of carbon-12
Back
Card 5
Front
The weighted average mass of all the isotopes relative to 1/12th the mass of an atom of carbon-12
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