1.16: Know What is Meant by the Terms Atomic Number, Mass Number, Isotopes and Relative Atomic Mass (Ar)

DEFINITIONS:

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TERM	DEFINITION
ATOMIC NUMBER	Number of Protons in the Nucleus of an Atom
MASS NUMBER	Sum of number of Protons and Neutrons in the Nucleus of an Atom
ISOTOPES	Atoms of the same Element that contains the same Atomic Number but different Mass Number
RELATIVE ATOMIC MASS (Ar)	Measure of the mass of one Atom of the Element