rutherfordium

Also known as element 104, kurchatovium, Rf, Ku, unnilquadium, Unq

Rutherfordium is a synthetic chemical element; it has symbol Rf and atomic number 104. It is named after physicist Ernest Rutherford. As a synthetic element, it is not found in nature and can only be made in a particle accelerator. It is radioactive; the most stable known isotope, 267Rf, has a half-life of about 48 minutes.

AI overview

Rutherfordium is a human-made element (symbol Rf, atomic number 104) named after physicist Ernest Rutherford that can only be created in a particle accelerator and doesn't exist naturally on Earth. Because it's radioactive and decays quickly—with its most stable form lasting only about 48 minutes—it has limited practical applications but serves as an important subject for scientific research into heavy elements.

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Chemical data

Formula: Rf
Molecular weight: 267.122 g/mol
IUPAC name: rutherfordium
SMILES: [Rf]
InChIKey: YGPLJIIQQIDVFJ-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Wikidata facts

Image: Rutherfordium.svg

Show 9 more facts

element symbol: Ku
Commons category: Rutherfordium
time of discovery or invention: 1964-01-01
atomic number: 104
Commons gallery: Rutherfordium
Unicode character: 鑪
canonical SMILES: [Rf]
chemical formula: Rf
electron configuration: [Rn] 5f¹⁴ 6d² 7s²

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~17 min read

Article

16 sections

Contents

Introduction
History
Discovery
Naming controversy
Isotopes
Stability and half-lives
Predicted properties
Chemical
Physical and atomic
Experimental chemistry
Gas phase
Aqueous phase
Notes
References
Bibliography
External links

In the periodic table, it is a d-block element and the second of the fourth-row transition elements. It is in period 7 and is a group 4 element. Chemistry experiments have confirmed that rutherfordium behaves as the heavier homolog to hafnium in group 4. The chemical properties of rutherfordium are characterized only partly. They compare well with the other group 4 elements, even though some calculations had indicated that the element might show significantly different properties due to relativistic effects.