Write the symbol for each of the following ions:

Write the symbol for each of the following ions:

the ion with a 1+ charge, atomic number 55, and mass number 133

the ion with 54 electrons, 53 protons, and 74 neutrons

the ion with atomic number 15, mass number 31, and a 3− charge

the ion with 24 electrons, 30 neutrons, and a 3+ charge

How do I figure out this question?