Year 12 The Periodic Table Chemistry Key Definitions

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Period
Horizontal row in the periodic table
1 of 9
Group
Vertical column containing elements with similar properties due to the same number of electrons in the outer shell
2 of 9
Periodcity
Trend in properties repeated across each period
3 of 9
First Ionisation Energy
The energy required to remove one electron from each atom in one mole of the gaseous element to form one mole of gaseous 1+ ions
4 of 9
Electron Shielding
The repelling effect of inner shells of electrons repelling outer shell electrons. The more inner shells the large the shielding effect and the smaller the nuclear attraction experienced by the outer electrons.
5 of 9
Successive ionisation energies
Measure of the amount of energy required to remove each electron in turn. An element has as many ionisation energies as it has electrons
6 of 9
Metallic Bonding
Electrostatic force of attraction between positive ions and negative delocalised electrons
7 of 9
Anion
Negative ions
8 of 9
Cation
Positive ions
9 of 9

Other cards in this set

Card 2

Front

Vertical column containing elements with similar properties due to the same number of electrons in the outer shell

Back

Group

Card 3

Front

Trend in properties repeated across each period

Back

Preview of the back of card 3

Card 4

Front

The energy required to remove one electron from each atom in one mole of the gaseous element to form one mole of gaseous 1+ ions

Back

Preview of the back of card 4

Card 5

Front

The repelling effect of inner shells of electrons repelling outer shell electrons. The more inner shells the large the shielding effect and the smaller the nuclear attraction experienced by the outer electrons.

Back

Preview of the back of card 5
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