- strong electrostatic attraction
- opposite charged ions
- throughout lattice
Properties of ionic compounds:
- high melting point
- strong electrostatic attraction
- giant ionic lattice
- soluble in water
- Ions attracted to polar water molecules
- conduct electricity
- ions can move and carry charge
A Lattice is a 3-D network of ions in fixed positions bonded together
OIL RIG
Oxidation- loses electrons Reduction- gains electrons
Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0/8 |
---|---|---|---|---|---|---|---|---|
Charge | 1+ | 2+ | 3+ | X | 3- | 2- | 1- | X |
Covalent bonding:
- non metal with non metal
- outer shells overlap
- electron shared in pairs
- atoms achieve outer shells (full)
- attracts both nuclei
Properties of simple covalent molecules:
- very strong bonds
- low melting and boiling points
- insoluble in water
- no free electrons
- Don't conduct electricity
- soluble in organ solvents
Intermolecular forces
- weak bonds
- easily broken
Giant covalent bonds
- strong bonds
- no free electrons
- rigid
- all atoms joined together
- covalent unreactive
Diamonds
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