Worksheet: Gamma Radiation

In this worksheet, we will practice describing the process of unstable atoms decaying to a lower energy state by emitting high-energy gamma rays.

Q1:

When an atomic nucleus emits a gamma ray, by how much does the charge of the nucleus change?

Q2:

When an atomic nucleus emits a gamma ray, by how much does the mass number of the nucleus change?

Q3:

When an atomic nucleus emits a gamma ray, by how much does the atomic number of the nucleus change?

Q4:

Which of the following is the correct symbol for a gamma ray?

  • AΨ
  • B𝜁
  • C𝑦
  • D𝛾
  • E𝜉

Q5:

The following nuclear equation shows gamma emission by radon.

2228622286RnX+𝛾

What is the name of element X?

  • ARadium
  • BPolonium
  • CFrancium
  • DRadon
  • EAstatine

What element symbol should replace X?

  • ARa
  • BRn
  • CRd
  • DRo
  • ERh

Q6:

The following nuclear equation shows gamma emission by cobalt.

602727CoCo+𝛾

What is the value of 𝑝 in the equation?

Q7:

Which of the following nuclear equations correctly shows gamma emission by iridium?

  • A1927719377IrIr+𝛾
  • B1927719378IrIr+𝛾
  • C1927719277IrIr+𝛾
  • D1927719176IrIr+𝛾
  • E1927719177IrIr+𝛾

Q8:

What type of particle is a gamma ray the same as?

  • AAn electron
  • BA positron
  • CA neutron
  • DA photon
  • EA proton

Q9:

The figure shows a section of the periodic table. If an atom of an isotope of iridium undergoes gamma emission, which of the elements shown in the figure will the atom become afterward?

  • APlatinum
  • BOsmium
  • CIridium
  • DGold
  • ERhenium

Q10:

The given nuclear equation shows gamma emission by barium.

13756BaBa+𝛾

What is the value of 𝑚 in the previous equation?

What is the value of 𝑛 in the previous equation?

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