Question

What is the relation between atomic number and atomic mass.​

Answer 1

Explanation:

The number of protons determines an element's atomic number and is used to distinguish one element from another. ... Together, the number of protons and the number of neutrons determine an element's mass number

Answer 2

Answer:

Each atom also has a mass number, denoted by the symbol A. The mass number of an atom is equal to the number of protons plus the number of neutrons that it contains. In other words, the number of neutrons in any atom is it's mass number minus its atomic number.