The Periodic table

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  • Created by: Kat098
  • Created on: 03-04-18 22:01
A period
Horizontal row of elements in the periodic table
1 of 17
A group
Vertical column in periodic table. Have similar chemical properties and same number of outer-shell electrons
2 of 17
Periodicity
Trend in properties that is repeated across each period
3 of 17
Ionisation
The gaining or losing of electrons of an atom to become an ion
4 of 17
First ionisation energy
Energy required to remove one electron from each atom in one mole of the gaseous element to form one mole of gaseous 1+ ions
5 of 17
Atomic radius
the size of its atoms, distance from nucleus to the boundary of the surrounding cloud of electrons
6 of 17
Electron shielding
Repulsion between electrons in different inner shells. Reduces attracitve force from positive nucleus to outer-shell electrons
7 of 17
Successive ionisation energies
A measure of the energy required to remove each electron in turn
8 of 17
Thermal Decomposition
The breaking up of a chemical substance with heat into at least two chemical substances
9 of 17
Displacement reaction
More reactive element takes the place of a less-reactive element in a compund (more reactive bonds, other is alone)
10 of 17
Disproportionation
oxidation and reduction of the same element in a redox reaction
11 of 17
Precipitation reaction
The formation of a solid from a solution. Precipitates are often formed when two aqueous solutions are mixed together
12 of 17
First ionisation energy...
Increases across period. Decreases down group
13 of 17
Testing for carboante ions (CO3^2-)
Add dilute strong acid. Collect gas and pass through lime water. Fizzing and cloudy limewater from carbon dioxide
14 of 17
Testing for sulfate ions (SO4^2-)
Add dilute hydrocholoric acid. Add barium chloride. White precipitate of barium sulfate forms
15 of 17
Testing for halide ions
Dissolve in water. Add aqueous silver nitrate. White (Cl), cream (Br), yellow (I). Add aqueous ammonia. Cl dissolve in dilute, Br in conc, I in none
16 of 17
Testing for ammonium ions
Add sodium hydroxide solution. Warm gently. Turn red litmus paper blue and distinctive smell
17 of 17

Other cards in this set

Card 2

Front

Vertical column in periodic table. Have similar chemical properties and same number of outer-shell electrons

Back

A group

Card 3

Front

Trend in properties that is repeated across each period

Back

Preview of the back of card 3

Card 4

Front

The gaining or losing of electrons of an atom to become an ion

Back

Preview of the back of card 4

Card 5

Front

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 5
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