Answers

2015-07-08T16:29:54+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
They have the same number of protons (and electrons for that matter) but different number of neutrons. So basically, they are elements with the same atomic number but different atomic mass. The number of neutrons is what's making the difference between the two.
0