Which is the only element that contains more protons than neutrons in its most abundant stable isotope?
A)lithium
B)nitrogen
C)hydrogen
D)copper

Question

Quizplus · Accepted Answer

Hydrogen has one proton and its most abundant stable isotope, hydrogen-1, also has one neutron. Therefore, it contains more protons than neutrons. The other options have more neutrons than protons in their most abundant stable isotopes.

Which Is the Only Element That Contains More Protons Than