(2) INORG CHEM: ATOMS

COMPONENT: found in the nucleus

• protons

• neutrons

COMPONENT: found in the outermost regions of atom outside the nucleus

electrons

COMPONENTS OF ATOM

PARTICLES	RELATIVE MASS	RELATIVE CHARGE
PROTONS
NEUTRONS
ELECTRONS

PARTICLES	RELATIVE MASS	RELATIVE CHARGE
PROTONS	1	+1
NEUTRONS	1	NEUTRAL
ELECTRONS	0.0005	-1

DALTON’S ATOMIC THEORY OF AMTTER

[READ]

LAW: The total mass of the products of a chemical reaction is the same as the total mass of the reactants (mass remains constant during chemical reaction)

LAW OF CONSERVATION OF MASS

LAW: The elemental composition of a pure compound is always the same, regardless of its source

LAW OF DEFINITE PROPORTIONS

LAW: When two elements form more than one compound, the masses of one element in these compounds for a fixed mass of the other element are in ratios of small whole numbers

LAW OF MULTIPLE PROPORTIONS