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57 Cards in this Set

  • Front
  • Back

Atomic Number

The number of protons in the nucleus of an atom

Mass Number

The number of protons and neutrons in the nucleus of an atom

Isotopes

Atoms of the same element with different numbers of neutrons

Atomic Orbital

A region within an atom that can hold up to two electrons with opposite spins

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

Successive Ionisation Energy

A measure of energy required t remove each electron in turn

Acid

A proton donor

Base

A proton acceptor

Alkali

A base that dissolves in water and releases OH- ions in aqueous solitons

Salt

Compound produced when the H+ ion from an acid is replaced by a metal ions or NH4+

Molar Mass

The mass, in g, per mole of a substance

Relative Isotopic Mass

The mass of an atom of an isotope compared with 1/12 of the mass of an atom of C-12

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

Mole

The amount of substance containing as many particles as there are carbon atoms in exactly 12g of C-12

Avogadros Constant

The number of particles per mole of a substance

Empirical Formula

The simplest whole number ratio of atoms of each element present in a compound

Empirical Formula

The simplest whole number ratio of atoms of each element present in a compound

Molecular Formula

The actual number of atoms of each element in a molecule

Water Of Crytallisation

The water present in a compound giving the compound a crystalline appearance

Water Of Crytallisation

The water present in a compound giving the compound a crystalline appearance

Anhydrous

when all the waters of crystallisation have been removed from a compound

Hydrated

When water of crystallisation is present in a crystal compound

Hydrated

When water of crystallisation is present in a crystal compound

Metallic Bonding

Strong electrostatic force of attraction between metal cations and delocalised electrons

Hydrated

When water of crystallisation is present in a crystal compound

Metallic Bonding

Strong electrostatic force of attraction between metal cations and delocalised electrons

Ionic Bond

The electrostatic force of attraction between oppositely charged ions

Covalent Bond

The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms

Hydrated

When water of crystallisation is present in a crystal compound

Metallic Bonding

Strong electrostatic force of attraction between metal cations and delocalised electrons

Ionic Bond

The electrostatic force of attraction between oppositely charged ions

Covalent Bond

The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms

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

Hydrated

When water of crystallisation is present in a crystal compound

Metallic Bonding

Strong electrostatic force of attraction between metal cations and delocalised electrons

Ionic Bond

The electrostatic force of attraction between oppositely charged ions

Covalent Bond

The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms

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

Electronegativity

The ability of an atom to attract the bonding electron towards itself I a covalent bond

Oxidation Number

A measure of the number of electrons that an atom uses to bond with atoms of another element

Oxidation Number

A measure of the number of electrons that an atom uses to bond with atoms of another element

Oxidation

A loss of electrons or gain in oxidation number

Oxidation Number

A measure of the number of electrons that an atom uses to bond with atoms of another element

Oxidation

A loss of electrons or gain in oxidation number

Reduction

A gain of electrons or decrease in oxidation number

Oxidation Number

A measure of the number of electrons that an atom uses to bond with atoms of another element

Oxidation

A loss of electrons or gain in oxidation number

Reduction

A gain of electrons or decrease in oxidation number

Redox

A reaction where both oxidation and reduction take place

Hydrocarbon

A compound that contains only hydrogen and carbon

Homologous Series

A family compounds containing the same functional group but with each successive member of the group differing by a -CH2 group

Saturated Hydrocarbon

Contain only single C-C bonds

Unsaturated Hydrocarbons

Contain at least one C-C double bond between carbon atoms

Structural Isomerism

Molecule with the same molecular formula but a different structural formula

Stereoisomerism

Compounds with the same structural formula but a different arrangement of atoms in 3D space

Radical

A species with an unpaired electron

Electrophile

An election pair acceptor