The periodic table Flashcards
1
Q
Group
A
vertical column in the periodic table
2
Q
Period
A
Horizontal row in the periodic table
3
Q
Ion
A
charged particle
4
Q
Cation
A
Positively charged ion
5
Q
Anion
A
Negatively charged ion
6
Q
Ionisation of energy
A
The energy needed per mole to remove an electron from an atom in the gaseous phase
7
Q
First ionisation energy
A
Energy needed per mole to remove the firs electron from an atom in the gaseous phase
8
Q
Electron Affinity
A
Amount of energy released per mole when an atom or molecule gains an electron to form a negative ion
9
Q
Electronegativity
A
The tendency of an atom to attract a shared pair of electrons to itself
10
Q
Atomic radius
A
Measure of the size of an atom
11
Q
Ionic radius
A
measure of the size of a cation or anion
