3.2.1 Periodicity Flashcards
(10 cards)
1
Q
Periodicity
A
Trends in physical and chemical properties of elements going across a period
2
Q
Periods
A
Vertical columns of elements
Same number of e- in outer most principle energy level
Trends in properties
3
Q
Groups
A
Horizontal row of elements
Trends in physical and chemical properties
4
Q
1st ionisation energy
A
Energy required to remove 1 mole of e- from 1 mole of gaseous atoms to form 1 mole of +1 gaseous ions
5
Q
Metallic bonding
A
Electrostatic forces of attraction between positively charged metal ions and a sea of delocalised e-
6
Q
Covalent bonding
A
e- are shared between non metals to achieve a full outer shell
7
Q
Giant metallic lattice
A
8
Q
Van der waals forces
A
9
Q
Macromolecular
A
10
Q
A
