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57 Cards in this Set
- Front
- Back
Atomic Number |
The number of protons in the nucleus of an atom |
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Mass Number |
The number of protons and neutrons in the nucleus of an atom |
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Isotopes |
Atoms of the same element with different numbers of neutrons |
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Atomic Orbital |
A region within an atom that can hold up to two electrons with opposite spins |
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First Ionisation Energy |
The Energy required to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions |
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Successive Ionisation Energy |
A measure of energy required t remove each electron in turn |
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Acid |
A proton donor |
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Base |
A proton acceptor |
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Alkali |
A base that dissolves in water and releases OH- ions in aqueous solitons |
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Salt |
Compound produced when the H+ ion from an acid is replaced by a metal ions or NH4+ |
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Molar Mass |
The mass, in g, per mole of a substance |
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Relative Isotopic Mass |
The mass of an atom of an isotope compared with 1/12 of the mass of an atom of C-12 |
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Relative Atomic Mass |
The weighted mean mass of an atom of an element compared with 1/12 of the mass of an atom of C-12 |
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Mole |
The amount of substance containing as many particles as there are carbon atoms in exactly 12g of C-12 |
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Avogadros Constant |
The number of particles per mole of a substance |
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Empirical Formula |
The simplest whole number ratio of atoms of each element present in a compound |
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Empirical Formula |
The simplest whole number ratio of atoms of each element present in a compound |
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Molecular Formula |
The actual number of atoms of each element in a molecule |
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Water Of Crytallisation |
The water present in a compound giving the compound a crystalline appearance |
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Water Of Crytallisation |
The water present in a compound giving the compound a crystalline appearance |
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Anhydrous |
when all the waters of crystallisation have been removed from a compound |
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Hydrated |
When water of crystallisation is present in a crystal compound |
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Hydrated |
When water of crystallisation is present in a crystal compound |
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Metallic Bonding |
Strong electrostatic force of attraction between metal cations and delocalised electrons |
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Hydrated |
When water of crystallisation is present in a crystal compound |
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Metallic Bonding |
Strong electrostatic force of attraction between metal cations and delocalised electrons |
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Ionic Bond |
The electrostatic force of attraction between oppositely charged ions |
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Covalent Bond |
The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms |
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Hydrated |
When water of crystallisation is present in a crystal compound |
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Metallic Bonding |
Strong electrostatic force of attraction between metal cations and delocalised electrons |
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Ionic Bond |
The electrostatic force of attraction between oppositely charged ions |
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Covalent Bond |
The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms |
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Dative Bond |
The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms, where only one of the atoms supplies both of the electrons shared |
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Hydrated |
When water of crystallisation is present in a crystal compound |
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Metallic Bonding |
Strong electrostatic force of attraction between metal cations and delocalised electrons |
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Ionic Bond |
The electrostatic force of attraction between oppositely charged ions |
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Covalent Bond |
The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms |
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Dative Bond |
The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms, where only one of the atoms supplies both of the electrons shared |
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Electronegativity |
The ability of an atom to attract the bonding electron towards itself I a covalent bond |
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Oxidation Number |
A measure of the number of electrons that an atom uses to bond with atoms of another element |
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Oxidation Number |
A measure of the number of electrons that an atom uses to bond with atoms of another element |
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Oxidation |
A loss of electrons or gain in oxidation number |
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Oxidation Number |
A measure of the number of electrons that an atom uses to bond with atoms of another element |
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Oxidation |
A loss of electrons or gain in oxidation number |
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Reduction |
A gain of electrons or decrease in oxidation number |
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Oxidation Number |
A measure of the number of electrons that an atom uses to bond with atoms of another element |
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Oxidation |
A loss of electrons or gain in oxidation number |
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Reduction |
A gain of electrons or decrease in oxidation number |
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Redox |
A reaction where both oxidation and reduction take place |
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Hydrocarbon |
A compound that contains only hydrogen and carbon |
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Homologous Series |
A family compounds containing the same functional group but with each successive member of the group differing by a -CH2 group |
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Saturated Hydrocarbon |
Contain only single C-C bonds |
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Unsaturated Hydrocarbons |
Contain at least one C-C double bond between carbon atoms |
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Structural Isomerism |
Molecule with the same molecular formula but a different structural formula |
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Stereoisomerism |
Compounds with the same structural formula but a different arrangement of atoms in 3D space |
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Radical |
A species with an unpaired electron |
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Electrophile |
An election pair acceptor |