sharonc6131 sharonc6131 06-03-2024 Chemistry contestada Boron, lithium, nitrogen, and neon each have two stable isotopes. In which of the following pairs of isotopes is the heavier isotope more abundant? Check all that apply. A. 10B and 11B B. 6Li and 7Li C. 14N and 15N D. 20Ne and 22Ne