Question

212 pb 82 is the isotope notation for iron. what is the atomic number, mass number, and number of both protons and neutrons?

Answer 1

Hello!

The mass number in isotope notation is denoted A, the atomic number is denoted as Z, and the element is denoted as X.

In the given isotope, the mass of the isotope is 212 amu, and the atomic number is 82.

We know that the number of electrons, and protons are equal to the atomic number. Therefore, there are 82 protons. Also, to find the number of neutrons, we subtract the atomic number from the atomic mass.

212 - 82 = 130 neutrons

Final answers:  

1. Atomic Number: 82
2. Mass number: 212
3. Number of Protons: 82
4. Number of Neutrons: 130