Question

What is atomic number and atomic mass number? How to represent both for an element?
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Answer 1

Answer:

Explanation:

In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. ... In other words, there is a periodic repetition of the properties of the chemical elements with increasing mass.

Answer 2

Answer:

the atomic number states the number of protons present in an atom whereas, the mass number indicates the total of the number of protons and the number neutrons present in an atom.