Search SchoolNGR

Thursday, 02 April 2026
Register . Login

In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is the half ...

In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is the half life of the radioactive material
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 0.75 days
  • B 2.58 days
  • C 4 days
  • D 4.80 days
  • E 6 days
Correct Answer: Option D
Explanation:
64g → 32g → 16g → 8g → 4g → 2g
Half life time= 24/5 = 4.8 days

Share question on: