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QuestionAnswer
Chemical Evolution Is the proposition that early in Earth's history, simple chemical compounds in the atmosphere and ocean combined to from larger, more complex substance
Element Contains a characteristic number of protons
Atomic Number Is given as a subscript of each of element symbol in the table
Isotope Froms of an element with different number of neutrons
Mass Number The sum of the protons and neutron in an atom
Created by: -YW-
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