Nuclear decay worksheet - CTE Online



Nuclear Decay

The following atoms all undergo alpha particle emission. Write the complete nuclear equation.

[pic] → alpha particle + Pb-206

[pic] → alpha particle + Th-234

[pic] → alpha particle + Ra-234

[pic] → alpha particle + Po-218

The following atoms all undergo beta decay. Write the complete nuclear equation.

[pic] → beta particle (e-) + N-14

[pic] → beta particle (e-) + Y-90

[pic] → beta particle (e-) + Ca-40

[pic] → beta particle (e-) + O-13

The following all undergo electron capture. Write the complete nuclear equation.

[pic] + electron (e-) → Pd-106

[pic] + electron (e-) → In-116

[pic] + electron (e-) → Ir-190

[pic] + electron (e-) → Te-123

The following all undergo positron emission. Write the complete nuclear equation.

[pic] → positron (e+) + In-116

[pic] → positron (e+) + Ni-61

[pic] → positron (e+) + P-30

[pic] → positron (e+) + Rb-85

Complete the missing information in the reactions. Then, label the reaction one of the following:

• Alpha Decay

• Beta Decay

• Electron Capture

• Positron Emission

C-6 → [pic] + [pic] Type: beta decay

[pic] → [pic] + alpha particle Type: alpha decay

[pic] → [pic] + positron (e+) Type: positron decay

[pic] → S-32 + [pic] Type: beta decay

[pic] + electron (e-) → [pic] Type: electron capture

Sc-40 → [pic] + [pic] Type: positron decay

[pic] → [pic] + U-244 Type: alpha decay

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