Question

Write two applications of actinoids.

Answer 1

1. The half-lives of natural thorium and uranium isotopes are so long that we get very negligible radiation from these elements. So, we find them in everyday use.
2. Th(IV) oxide, ThO₂ with 1% CeO₂ was used as a major source of indoor lighting before incandescent lamps came into existence only because these oxides convert heat energy from burning natural gas to intense light. Even today, there is a great demand for these lights for outdoor camping.