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e.g. water, ammonia, methane
Penta- (5)
Tetra- (4)
Tri- (3)
Di- (2)
Mono- (1)
e.g. hydrogen chloride
e.g. nitrate, carbonate
e.g. sodium chloride, where the overall charge is zero.
e.g. chloride ion
e.g. sodium ion
transfering of electrons from metal to non-metal atom
occurs between atoms of non-metals
electrons
Relative charge is -1. (-1.6 x 10^-19 C)
Relative mass is 1/1830. (9.11 x 10^-31 Kg)
neutrons
Relative mass is 0. (0C)
Relative mass is 1. (1.67 x 10^-27 Kg)
protons
Relative charge is +1. (+1.6 x 10^-19 C)
Relative mass is 1.(1.67 x 10^-27 Kg)
distilling
sedimentation
filtering
evaporating
dissolving
Heterogeneous
e.g. salad,concrete
Homogeneous
e.g solutions,milk
Compounds
atoms of different kinds e.g. water
Elements
atoms of the same kind e.g. oxygen