Final Answer:
$ ^4_2\text{He} + {}^0_{-1}\beta \rightarrow {}^0_0\gamma $
Wait — that’s not correct based on the given symbols.
Looking at the three items:
- $ ^4_2\text{He} $: alpha particle
- $ ^0_{-1}\text{B} $: likely a typo — should be $ ^0_{-1}\beta $, which is a beta-minus particle (electron)
- $ ^0_0\gamma $: gamma ray (no mass, no charge)
But the task appears to be identifying the *type* of decay shown — or perhaps completing a decay equation. However, the image shows just three separate symbols, not an equation.
Given standard curriculum context and the labels, this is likely asking:
Which of these represents a gamma ray?
The gamma ray is denoted $ ^0_0\gamma $ — mass number 0, atomic number 0, symbol γ.
So if the question is “Which one is a gamma ray?”, the answer is:
Final Answer:
$ ^0_0\gamma $
Parent Tip: Review the logic above to help your child master the concept of alpha and beta worksheet.
