Question

a)Name the radioactive isotope used in estimating the age of excavated material.
b) Why alpha particles used as projectiles for nuclear reactions
c) Mention one industrial use of beta radiations

Answer 1

Explanation:

1)Radiocarbon dating

2)alpha particles are produced for use as projectiles in nuclear research by ionization—i.e., by stripping both electrons from helium atoms—and then accelerating the now positively charged particle to high energies.

3)one uses of beta radiations :

they are used to gauge the thickness of films of material coming off production lines such as paper and plastic film.