Answer
27 protons
33 neutrons
27 electrons
Work Step by Step
The atomic number of cobalt is 27, which means it has 27 protons. The number of neutrons in cobalt-60 can be calculated by subtracting the atomic number from the mass number. The mass number of cobalt-60 is 60
Number of neutrons = Mass number - Atomic number
Number of neutrons = 60 - 27
Number of neutrons = 33
Therefore, there are 27 protons, 33 neutrons, and 27 electrons in an atom of cobalt-60.
