Answer: Protium, deuterium, tritium have 0,1,2 neutrons.
- A They differ in their number of protons
- B Protium, deuterium, tritium have 0,1,2 neutrons
- C They each contain the same neutron count
- D Tritium is the most abundant in nature
Correct answer: B. Protium, deuterium, tritium have 0,1,2 neutrons
Explanation: Protium, deuterium and tritium all have one proton but 0, 1 and 2 neutrons respectively; protium is by far the most abundant isotope.
Each water molecule's O-H bonds (covalent, solid) can hydrogen-bond (dashed) to neighbouring molecules, forming an extended network responsible for water's unusually high boiling point and density anomaly.
Concept context
The simplest and most abundant element in the universe. Study its unique position in the periodic table, isotopes (protium, deuterium, tritium), properties of water and hydrogen peroxide, and industrial uses.