What is the name of a metallic radioactive transuranic element with atomic number 101 in the actinide series, discovered in 1955?

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SSC CGL 2023 Tier-I Official Paper (Held On: 21 Jul 2023 Shift 4)
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  1. Seaborgium
  2. Nobelium
  3. Mendelevium
  4. Rutherfordium

Answer (Detailed Solution Below)

Option 3 : Mendelevium
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The correct answer is Mendelevium.Key Points

  • The metallic radioactive transuranic element with atomic number 101 in the actinide series is called Mendelevium.
  • It was discovered in 1955 by a team of American scientists led by Albert Ghiorso.
  • Mendelevium is named after the Russian chemist Dmitri Mendeleev, who is known for creating the periodic table of elements.
  • It is a synthetic element, which means that it is not found naturally on Earth and can only be produced in a laboratory.

Additional Information

  • Seaborgium is a synthetic element with atomic number 106.
    • It is named after the American chemist Glenn T. Seaborg.
  • Nobelium is a synthetic element with atomic number 102.
    • It is named after Alfred Nobel, the inventor of dynamite.
  • Rutherfordium is a synthetic element with atomic number 104.
    • It is named after the British physicist Ernest Rutherford.
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