Question

(f) How many a and ß particles are lost during
the transformation of 228 Th to 216 Rn ?
90
86​

Answer 1

Answer:

conversion of a neutron to a proton. ... The isotope Cr–53 is produced by the beta decay of which of the following: ... d. francium-228 ... Which isotope is produced when 216Po decays by emitting an alpha particle followed by 2 beta particles? ... What repulsive forces must be overcome for any element other than hydrogen ...

Explanation:

Answer 2

I think 90 I am not sure but it's my opinion