Flashcards
Electrons, bonding and structure
Cards in this deck (26)
- 1First Ionisation EnergyThe energy required to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous +1 ions.
- 2Electron ShieldingThe repulsion between electrons in different inner shells. Shielding reduces the net attractive force from the positive nucleus on the outer-shell electrons.
- 3Successive Ionisation EnergiesThe amount of energy required to remove each electron in turn.
- 4Second Ionisation EnergyThe amount of energy required to remove one electron from each ion in one mole of gaseous 1+ ions to from one mole of gaseous 2+ ions.
- 5ShellA group of atomic orbitals with the same principal quantum number .
- 6Atomic OrbitalA region within an atom that can hold up to two electrons, with opposite spins.
- 7Sub Shella group of the same type of atomic orbitals (s, p, d or f) within a shell.
- 8Electron ConfigurationThe arrangement of electrons in an atom.
- 9CompoundA substance formed from two or more chemically bonded elements in a fixed ratio, usually shown by a chemical formula.
- 10Ionic BondThe electrostatic attraction between oppositely charged ions.
- 11Giant Ionic LatticeA 3D structure of oppositely charged ions, held together by strong ionic bonds.
- 12GroupA vertical column in the periodic table.
Elements in the same group have the similar chemical properties and their atoms have the same number of outer shell electrons. - 13Covalent BondA bond formed by a shared pair of electrons.
- 14Lone PairAn outer-shell pair of electrons that is not involved in chemical bonding.
- 15Dative Covalent BondA shared pair of electrons which has been provided by one of the bonding atoms only.
- 16ElectronegativityThe measure of the attraction of a bonded atom for the pair of electrons in a covalent bond.
- 17Permanent DipoleA small charge difference across a bond that results from a difference in the electronegativities of the bonded atoms.
- 18Polar Covalent BondHas a permanent dipole.
- 19Intermolecular ForceAn attractive force between neighbouring molecules.
- 20Permanent Dipole-Dipole ForceA weak attractive force between permanent dipoles in neighbouring polar molecules.
- 21Van der Waals' ForcesAttractive forces between induced dipoles in neighbouring molecules.
- 22Metallic BondingThe electrostatic attraction between positive metal ions and delocalised electrons.
- 23Delocalised ElectronsShared between more than two atoms.
- 24Giant Metallic LatticeThe 3D structure of positive ions and delocalised electrons bonded together by strong metallic bonds.
- 25Simple Molecular LatticeA 3D structure of molecules bonded together by weak intermolecular forces.
- 26Giant Covalent LatticeA 3D structure of atoms, bonded together by strong covalent bonds.
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- a2 AS Chemistry Flashcards on Electrons, bonding and structure, created by Ashleigh Foote28 on 05/03/2015.
- Created by
- Ashleigh Foote28 · Mar 2015
- Updated
- Feb 19, 2016
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