Flashcards
OCR Chemistry Definitions 1.2
Cards in this deck (15)
- 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
- 2Successive Ionisation EnergyA measure of the energy required to remove each electron in turn. For example, the second ionisation energy of an element is the energy required to remove one electron from each ion in one mole of gaseous 1+ ions to form one mole of gaseous 2+ ions
- 3ObitalRegion that can hold up to two electrons, with opposite spins
- 4S OrbitalSpherical Shape
- 5P Orbital3D dumb-bell shape
at right angles to each other - 6Ionic bondingelectrostatic attraction between opppositely charged ions
- 7Covalent Bondbond formed by a shared pair of electrons
- 8ElectronegativityThe ability of an atom to attract the bonding electrons in a covalent bond
- 9—Boron Triflouride:
3 bonded pairs
Bond angle: 120
Trigonal Planar - 10—Methane:
4 bonded pairs
bond angle: 109.5
Tetrahedral
- 11—Sulphur Hexaflouride
6 bonded electron pairs
bond angle: 90
Octahedral
- 12—Ammonia
bond angle: 107
pyramidal
- 13—Water
bond angle: 104.5
non-linear
- 14—CO2
bond angle: 180
Linear
- 15Metallic Bondingthe attraction of positive ions to delocalised electrons
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- Description
- A level Chemistry (Definitions) Flashcards on OCR Chemistry Definitions 1.2, created by 09valentinerhi on 02/01/2015.
- Created by
- 09valentinerhi · Jan 2015
- Updated
- Aug 14, 2017
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