Worksheet: Beta Decay

In this worksheet, we will practice how to solve nuclear equations involving beta decay.

Q1:

The nuclear equation shows how carbon decays to nitrogen via beta decay. What is the value of 𝑛 in the equation?

Q2:

The nuclear equation shows how argon decays to potassium via beta decay. What is the value of 𝑚 in the equation?

Q3:

Calcium-40 is created through the beta decay of potassium, as shown in the nuclear equation What are the values of 𝑝 and 𝑞 in the equation?

  • A 𝑝 = 4 5 , 𝑞 = 2 4
  • B 𝑝 = 3 5 , 𝑞 = 1 5
  • C 𝑝 = 4 0 , 𝑞 = 2 0
  • D 𝑝 = 4 0 , 𝑞 = 1 9
  • E 𝑝 = 3 9 , 𝑞 = 1 9

Q4:

When an atomic nucleus emits a beta particle, how much does the atomic number of the remaining nucleus change by?

Q5:

What is the relative charge of a beta particle?

Q6:

When an atomic nucleus emits a beta particle, how much does the mass number of the remaining nucleus change by?

Q7:

The graph shows an isotope of thallium undergoing beta decay. The number of protons of the isotope is shown on the 𝑥 -axis, and the number of neutrons of the isotope is shown on the 𝑦 -axis.

What isotope of thallium does the graph show?

  • AThallium-209
  • BThallium-208
  • CThallium-211
  • DThallium-210
  • EThallium-212

What isotope does the thallium become?

  • ALead-210
  • BLead-211
  • CLead-209
  • DLead-208
  • ELead-212

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