Hey guys it's urgent pls clarify for me the meaning of atomic number and atomic mass.
ALSO PLS WR 15 ELEMENTS AND THEIR AT.NO. AND AT.MASS(PIC)
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Hey guys it's urgent pls clarify for me the meaning of atomic number and atomic mass.
ALSO PLS WR 15 ELEMENTS AND THEIR AT.NO. AND AT.MASS(PIC)
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Answer:
Atomic number = the no. Of positive (protons) units present in nucleus
Atomic number = the sum of neutrons and protons.
Atomic Number :-
the number of protons that a chemical element has in its centre (nucleus).
Atomic Mass :-
the mass of an atom of a particular chemical substance
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