Chemistry: Unit 1 Module 2

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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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Electron Sheilding
The repulsion between electrons in different inner shells
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Successive Ionisation Energy
A measure of the energy required to remove each electron in turn
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Second Ionisation Energy
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
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Shell
A group of atomic orbitals with the same principal quantum number
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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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Sub Shell
A group of the same type of atomic orbitals within a shell
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Electron Configuration
The arrangement of electrons in an atom
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Compound
A substance formed from two or more chemically bonded elements in a fixed ratio
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Ionic Bond
The electrostatic attraction between oppositely charged ions
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Giant Ionic Lattice
A three dimensional structure of oppositely charged ions, held together by strong ionic bonds
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Covalent Bond
A bond formed by a shared pair of electrons
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Lone Pair
An outer-shell pair of electrons that is not involved in chemical bonding
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Dative Covalent Bond
A shared pair of electrons which has been provided by one of the bonding atom
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Electronegativity
A measure of the attraction of a bonded pair of electrons in a covalent bond
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Permanent Dipole
A small charge difference across a bond that results from a difference in the electronegativities of the bonded atoms
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Polar Covalent Bond
Has a permanent dipole
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Polar Molecule
Has an over dipole, when you take into consideration any dipoles across the bond
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Intermolecular Force
An attractive force between neighbouring molecules
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Permanent Dipole-Dipole Force
A weak attractive force between permanent dipoles in neighbouring molecules
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van der Waals' Forces
Attractive forced between induced dipoles in neighbouring molecules
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Hydrogen Bond
A strong dipole-dipole attraction between; An electron-deficient hydrogen atom on one molecule and A lone pair of electrons on a highly electronegative atom on different molecules
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Metallic Bonding
The electrostatic attraction between positive metal ions and delocalised electrons
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Giant Metallic Lattice
A three-dimensional structure of positive ions and delocalised electrons by strong metallic bonds
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Simple Molecular Lattice
A three-dimensional structure of molecules bonded together by weak intermolecular forces
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Giant Covalent Lattice
A three-dimensional structure of atoms, bonded together by strong covalent bonds
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Other cards in this set

Card 2

Front

The repulsion between electrons in different inner shells

Back

Electron Sheilding

Card 3

Front

A measure of the energy required to remove each electron in turn

Back

Preview of the back of card 3

Card 4

Front

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

Back

Preview of the back of card 4

Card 5

Front

A group of atomic orbitals with the same principal quantum number

Back

Preview of the back of card 5
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