Q94P - Chemistry: Molecular Nature Of Matter And Change

Question

:Some  ${}_{\mathbf{95}}{}^{\mathbf{243}}\mathbf{Am}$ was present when Earth formed, but it all decayed in the next billion years. The first three steps in this decay series are the emission of an $\mathbf{\alpha }$ particle, a   particle, and another ${\mathbf{\beta }}^{\mathbf{-}}$particle. What other isotopes were present on the young Earth in a rock that contained some ${}_{\mathbf{95}}{}^{\mathbf{243}}\mathbf{Am}$?

Step-by-Step Solution

Answer

The isotopes present in the rock contaning   are  ${}_{93}{}^{239}\mathrm{Np},{{ }^{239}}_{94}Puand,{}_{92}{}^{235}\mathrm{U}$

Definition of Concept

Nuclear reaction: A nuclear reaction occurs when a lighter nucleus fuses together to form new stable nuclei, or when a heavier nucleus splits into stable daughter nuclei, releasing a large amount of energy.

Find the other isotopes were present on the young Earth in a rock