# How can you identify two ways in which carbon-12, carbon-13, and carbon-14 are alike?

##### 1 Answer
Sep 23, 2016

All the carbon nuclides have $Z = 6$...........

#### Explanation:

All the carbon nuclides have $Z = 6$, where $Z$ equals the number of massive, positively charge particles present in the carbon nucleus. Of course, in the given isotopes, ""^12C, ""^13C, ""^14C, there are $6$, $7$, and $8$ neutrons, massive, neutrally charged nuclear particles in each nucleus.

And because these nuclides are NEUTRAL, there must 6 electrons, fundamental, negatively charged particles of negligible mass in each isotope. So there are your two: protons and electrons.