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Name: Rutherfordium
Symbol: Rf
Number of Energy Levels: 7
Electrons on the outer energy level: 2
Atomic number: 104
Atomic Mass: 267 Amu (Atomic Mass Units)
Protons/Electrons: 104
Neutrons: 157
Density: 22.3 g/cm3
Classification: Transition Metal

Rutherfordium | Chemical elements

Rutherfordium was discovered in 1964 at Joint Institute for Nuclear Research. Rutherfordium was named after Ernest Rutherford. Rutherfordium’s melting point is predicted to be at 2100 °C (2400 K, 3800 °F) and its boiling point is predicted to be at 5500 °C (5800 K, 9900 °F).

Top 7 interesting facts about Rutherfordium

  1. Rutherfordium is a radioactive man-made element.
  2. Rutherfordium is expected to be a solid under standard conditions.
  3. Rutherfordium behaves as the heavier homologue to hafnium.
  4. Rutherfordium has fifteen known isotopes which are not stable and not all isotopes have known half-lives.
  5. Rutherfordium’s isotope with the shortest known half-life is 253-Rutherfordium (under 50 μs).
  6. Rutherfordium’s isotope with the longest known half-life is 267-Rutherfordium (1.3 hours).
  7. Rutherfordium’s lighter isotopes have shorter half-lives while heavier isotopes have longer half-lives.

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