Symbol Rf
Atomic Number 104
Atomic Mass 267 g.mol -1
Discovered by Georgy Flerov and colleagues and at Dubna, near Moscow, Russia, and independently by Albert Ghiorso and colleagues at Berkeley, California, USA in 1964

Chemical Properties

Group 4 Melting point Unknown
Period 7 Boiling point Unknown 
Block d Density (g cm−3) Unknown 
Atomic number 104 Relative atomic mass [267] 
State at 20°C Solid Key isotopes 265Rf
Electron configuration [Rn]5f16d7s2 CAS number 53850-36-5
ChemSpider ID 11201447 ChemSpider is a free chemical structure database.

What is Rutherfordium?

  • Rutherfordium is a chemical element with atomic number 104 and symbol Rf, named in honor of New Zealand physicist Ernest Rutherford.
  • It is a synthetic element ie., an element which is not found in nature but can be prepared in the laboratory.
  • It can be created by bombarding Californium-249 with a Carbon-12 nuclei.

Uses of Rutherfordium

  • Presently, it does not have any uses or application except being used in research. As it is not found in nature, there is no chance of being affected by it.

Properties of Rutherfordium

  • Rutherfordium is a d-block element, member of 7th period and belongs to group 4 elements in the periodic table.
  • It is a kind of transuranium and radioactive element which cannot be found in nature.
  • It does not have any stable or naturally occurring isotopes.
  • Many radioactive isotopes have been created in the lab, either by observing decay of heavier metals or by fusing two elements.

Practise This Question

Which of the following sets comprise of natural fibres only?