Question

What is the half-life of Americium-242?

Answer 1

16.02 hours

Explanation:

Americium-242 (`""^(242)"Am"`) has a half life of 16.02 hours . It decays to Curium-242 emitting `beta^-`-particles and `gamma` photons.

The metastable variant of Americium-242 (`""^(242m)"Am"`) has a half-life of 141 years and emits `alpha`-particles.