WBCS.LIVE practice question

The radioactive element used in Heart-pacemakers is

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Uranium
  2. Deuterium
  3. Plutonium
  4. Radium

Correct answer and explanation

Correct answer: Plutonium

Explanation: The radioactive element used in heart pacemakers is Plutonium (Pu). 📚 Other Information: ▪️ Pacemakers are small devices that regulate the heartbeat. ▪️ Plutonium-238 provides the energy source in some long-lasting pacemakers. ▪️ It produces heat through radioactive decay, which is converted to electricity. ▪️ This type is known as Radioisotope Thermoelectric Generator (RTG). ▪️ Plutonium is used due to its long half-life (87.7 years). ▪️ Commonly used in spacecraft power systems as well. ▪️ In modern times, lithium batteries have replaced plutonium in pacemakers. ▪️ Careful shielding ensures no radiation exposure to the patient.