Bonding Flashcards
1
Q
Name a type of crystal
A
A giant covalent lattice
2
Q
Properties of an ionically bonded substances
A
Conduct electricity when molten or dissolved
High melting point
Dissolve in water because water molecules are polar which breaks up the lattice
3
Q
Ions to know
A
NH4+ Ammonium CO3 2- Carbonate OH- Hydroxide NO3 1- Nitrate SO4 2- sulphate
4
Q
What structure do metallic substances occur in
A
Giant metallic lattice
5
Q
Definition of
Electronegetivity
A
Ability of an element to attract a shared pair of electrons in a covalent bond
6
Q
What is a charge cloud
A
An area where there is a large chance you will find an electron
7
Q
What causes a permanent dipole
A
Polarisation caused by electronegativity
8
Q
What effect do Line pairs have on bond angles
A
Reduced angle by 2.5 degrees
The lone pairs force the bonded pairs together
