Question

X atom has a nuclear number of 24 and a Proton number of 11 how many neutrons does this X atom contain​

Answer 1

Answer:

The mass number of an atom is its total number of protons and neutrons and nucleus does not contain electron.

11 protons and 13 neutrons

11+13=24

Explanation:

Subtract the atomic number from the atomic mass.

Since the vast majority of an atom's mass is found its protons and neutrons, subtracting the number of protons (i.e. the atomic number) from the atomic mass will give you the calculated number of neutrons in the atom.