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isomer comparison table
Subject has definition is a kind of
nucleusThe massive, positively charged central part of an atom, composed mainly of protons and neutrons, around which the electrons revolve. The radius of an atomic nucleus is directly proportional to the cube root of its mass. Density at least 1014 g cm-3. Radius 10-12-10-13 cm.charged particle
isomerNucleus with the same A and Z numbers but in different energy states.nucleus

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