Question Detail

PHY 104 PHY 104 Past Questions Objective Question

Question

The reaction represented by the equation ²¹⁰Po → ²⁰⁶Pb + ______ is an example of
Options
A alpha decay
Correct Answer
B positron emission
C gamma emission
D beta emission
Correct Answer

Option A is the correct answer.

Detailed Explanation

The mass number decreases by 4 (210 → 206) and the atomic number decreases by 2 (84 → 82 for Po to Pb). This is alpha decay, which emits an alpha particle (⁴₂He).

Hint

A decrease in A by 4 and Z by 2 indicates alpha decay.

Question Info