Which isotope below has 8 neutrons?
Oxygen-17 has 9 neutrons and 8 protons, 8Be has 4 neutrons and 4 protons, and lithium-5 has 2 neutrons and 3 protons.
Two isotopes of oxygen are 18O and 16O. These two isotopes have different:
- Atomic numbers
- Mass numbers
- Number of electrons
- Number of protons
Which of the following have the same number of protons, but have different numbers of neutrons?
- 23Na and 24Mg
- 46Ca and 46Ti
- 7Li and 6Li
- 16O and 19F