Tritium is a radioactive isotope, mainly produced in nuclear fusion reactions.

His story was completely nonsense.

His art style is unique, it's neither fish nor fowl.

He is deeply studying about the counterpoint in music.

I eat delicious cooked grains (rice) every day.

Ununhexium is an element that is not yet fully understood.

Strontium is one of the elements abundantly present in the earth's crust.

The soundtrack of this movie is wonderful.

Lawrencium is one of the heaviest elements in the periodic table.

The great auk is a species of bird that has become extinct.