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.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He spoke of his big dreams, saying, 'How can a sparrow understand the ambitions of a swan?'

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.