Protium, deuterium and tritium are placed in which of the following categories?

Correct option is A

Protium, deuterium, and tritium are isotopes of hydrogen. Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. Protium has no neutrons, deuterium has one neutron, and tritium has two neutrons.

Key points:
● Isotopes have the same atomic number but different mass numbers.
● Protium (¹H), deuterium (²H), and tritium (​³H) are the three isotopes of hydrogen.
● Protium is the most abundant isotope, while tritium is radioactive.
● Isotopes of elements often have similar chemical properties but differ in physical properties.
● Deuterium is used in nuclear reactors and tritium in nuclear fusion research.
● The concept of isotopes is crucial in radiocarbon dating and medical diagnostics.

Additional Information:

• Isobar refers to atoms with the same mass number but different elements.
• Isotone refers to atoms with the same number of neutrons.