Question

give two points of difference between: Atomuc number- mass number​

Answer 1

Explanation:

1. Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. ... 1.The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.

Answer 2

Answer:

1. Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. ... 1.The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.

Explanation:

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