Which actinide, discovered by Glenn T Seaborg in 1940, is used as a heat source for sensitive electrical components in satellites as well as a power source for satellites?

This question was previously asked in
SSC CGL 2023 Tier-I Official Paper (Held On: 27 Jul 2023 Shift 1)
View all SSC CGL Papers >
  1. Curium
  2. Plutonium
  3. Nobelium
  4. Americium

Answer (Detailed Solution Below)

Option 2 : Plutonium
super-pass-live
Free
SSC CGL Tier 1 2025 Full Test - 01
3.3 Lakh Users
100 Questions 200 Marks 60 Mins

Detailed Solution

Download Solution PDF

The correct answer is Plutonium.Key Points

  • Plutonium was discovered by Glenn T Seaborg in 1940.
  • It is a silvery-gray actinide metal that oxidizes to a dull covering and tarnishes when exposed to air.
  • The element typically manifests in four oxidation states and six allotropes. 
  • Plutonium-238 is used as a heat source for sensitive electrical components in satellites as well as a power source for satellites.

Additional Information

  • Curium is a radioactive metallic element and is used in the production of alpha particles for cancer treatment.
    • It is also used in heart pacemakers.
  • Nobelium is a synthetic element and has no known uses.
    • Because of its radioactivity, it is toxic
  • Americium is a radioactive element and is used in smoke detectors and as a source of gamma radiation for industrial radiography.
    • The most prevalent form of Americium is Americium-241.
Latest SSC CGL Updates

Last updated on Jul 8, 2025

-> The SSC CGL Notification 2025 for the Combined Graduate Level Examination has been officially released on the SSC's new portal – www.ssc.gov.in.

-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.

-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.

->  Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.

-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.

-> The CGL Eligibility is a bachelor’s degree in any discipline.

-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.

-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.

-> The CSIR NET Exam Schedule 2025 has been released on its official website.

Get Free Access Now
Hot Links: teen patti game all teen patti master teen patti comfun card online teen patti game online teen patti cash