Question

describe the relationship between mass number and atomic number​

Answer 1

Answer:

Atomic number (Z) is the number of protons in the nucleus of an atom. It is also equal to the number of electrons since the atom is electrically neutral.Mass number (A) is the total numberof neutrons and protons present in the nucleus of an atom.

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. ... A property closely related to an atom's mass number is its atomic mass.

Answer 2

where = to number of protons + number of neutrons

mass number = atomic number + number of neutrons

definite number and mass number can be indicated on the symbol of an element that atomic number is written on the lower left side of the symbol whereas mass number is written on the upper left side of the symbol of the element..