Select all that apply.
any element can always be identified by its:
atomic mass
number of neutrons
number of protons from
atomic number

Explanation:

It is known that atomic number is the unique number which tells the total number of protons present in an atom.

Each element will have different atomic number but it is possible that two different elements can have same mass number.

These type of species which have same mass number but different atomic number are known as isobars.

For example, mass number of both argon and potassium is 18. But atomic number of argon is 18 and atomic number of potassium is 19.

Therefore, we can conclude that any element can always be identified by its number of protons and atomic number.