鈷-60的原子核有多少中子?

From the Periodic Table(週期表), the atomic number (原子序) and mass number (原子量) for Cobalt-60 (鈷-60) are respectively 27 and 60.

Hence, the number of neutrons (中子) in the nucleus = (60 - 27) = 33

i have 1 中子(中指)

33個，鈷有27個質子，60-27=33