What are the forms of hydrogen?

Answer 1

Depending on the temperature, hydrogen can exist in three states of matter (forms), viz., gas, liquid, and solid.

Also hydrogen has three isotopes, viz. protium, deuterium, and tritium. This depends on the number of neutrons present in the nucleus.

protium ; 0 neutrons ; The most common isotope of hydrogen

deuterium ; 1 neutron ; known as 'heavy hydrogen'.

tritium ; 2 neutrons ; known as 'super-heavy' hydrogen, and it is also radio-active.

NB When describing as 'forms' you need to be more specific, re. isotopes, states of matter , or any other characteristic.

Answer 2

There are three forms of Hydrogen (these are known as isotopes).

These are normal hydrogen, deuterium and tritium.

Answer 3

The three forms of hydrogen are atomic hydrogen (H), molecular hydrogen (H2), and deuterium (D or 2H).