Multiple choice

Given that the half life of a substance is 114 seconds. How long will it take for half to decay

  1. 10 seconds

  2. 100 seconds

  3. 114 seconds

  4. 132 seconds

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The half-life of a radioactive substance is defined as the time required for half of the radioactive atoms in a sample to decay. If the half-life is 114 seconds, it takes exactly 114 seconds for half of the substance to decay.