Isotones
Isobars
The atoms of \(^{6}C^{13} and ^{7}N^{14}\) are considered isobars because they have the same mass number (13 for C-13 and 14 for N-14), but different atomic numbers (6 for carbon and 7 for nitrogen). Isobars are atoms of different elements that have the same mass number but different atomic numbers.
Which of the following compounds can exhibit geometrical isomerism, and why?
1) 2-butene
2) 1-butene ?
3) Pent-2-ene
4) But-2-yne