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The total number of nucleons in the nucleus is called _________(a) Atomic number(b) Mass number(c) Electric charge(d) Periodic numberThe question was posed to me during a job interview.The query is from Atomic Structure in portion Nuclear Power Plant of Energy Engineering

Answer»

Correct option is (b) Mass NUMBER

Easiest explanation: The total number of nucleons in the nucleus is called the mass number A. Nuclear symbols are written as zX^A Where X is chemical symbol. The masses of ATOMS are compared on a SCALE in which an isotope of 6C^12 has a mass of exactly 12.



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