Question

types of decay reactions state whether each of the following decay reactions is alpha, beta, or gamma decay. 1. $_{92}^{232}u
ightarrow_{2}^{4}he + _{90}^{228}th$ 2. $_{52}^{130}te
ightarrow_{ - 1}^{0}e+_{53}^{130}i$ 3. $_{1}^{3}h
ightarrow_{ - 1}^{0}e+_{2}^{3}he$

Explanation:

Step1: Recall alpha - decay characteristics

Alpha - decay is when a nucleus emits an alpha particle ($^4_2He$). In the reaction $^{232}_{92}U
ightarrow^{4}_{2}He + ^{228}_{90}Th$, an alpha particle is emitted.

Step2: Recall beta - decay characteristics

Beta - decay is when a nucleus emits an electron ($^0_{ - 1}e$). In the reaction $^{130}_{52}Te
ightarrow^0_{ - 1}e+^{130}_{53}I$ and $^3_1H
ightarrow^0_{ - 1}e + ^3_2He$, an electron is emitted.

Answer:

1. Alpha decay
2. Beta decay
3. Beta decay