Template:Infobox rutherfordium

Rutherfordium, ₁₀₄Rf

Rutherfordium
Pronunciation	/ˌrʌðərˈfɔːrdiəm/ ​(RUDH-ər-FOR-dee-əm)
Mass number	[267]
Rutherfordium in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Hf ↑ Rf ↓ — lawrencium ← rutherfordium → dubnium
Atomic number (Z)	104
Group	group 4
Period	period 7
Block	d-block
Electron configuration	[Rn] 5f14 6d2 7s2
Electrons per shell	2, 8, 18, 32, 32, 10, 2
Physical properties
Phase at STP	solid (predicted)
Melting point	2400 K ​(2100 °C, ​3800 °F) (predicted)
Boiling point	5800 K ​(5500 °C, ​9900 °F) (predicted)
Density (near r.t.)	17 g/cm3 (predicted)
Atomic properties
Oxidation states	common: +4 (+3), (+4)
Ionization energies	1st: 580 kJ/mol 2nd: 1390 kJ/mol 3rd: 2300 kJ/mol (more) (all but first estimated)
Atomic radius	empirical: 150 pm (estimated)
Covalent radius	157 pm (estimated)
Other properties
Natural occurrence	synthetic
Crystal structure	​hexagonal close-packed (hcp) Hexagonal close-packed crystal structure for rutherfordium (predicted)
CAS Number	53850-36-5
History
Naming	after Ernest Rutherford
Discovery	Joint Institute for Nuclear Research and Lawrence Berkeley National Laboratory (1969)
Isotopes of rutherfordium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 261Rf synth 2.1 s SF82% – α18% 257No 263Rf synth 15 min SF<100%? – α~30%? 259No 265Rf synth 1.1 min SF – 267Rf synth 48 min SF –

Rf · Rutherfordium
Lr ← ibox Lr	iso 104 Rf  [] IB-Rf [] IBisos []	→ Db ibox Db
File:Symbol category class.svg cat:Rf (0) File:Symbol category class.svg cat:Rf-isotopes (0) File:Commons-logo.svg Commons File:Wikidata-logo.svg Wikidata:Q1226 File:Wiktionary-logo.svg Wiktionary
indexes by PT (page)

child table, as reused in {IB-Rf}
Main isotopes of rutherfordium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 261Rf synth 2.1 s SF82% – α18% 257No 263Rf synth 15 min SF<100%? – α~30%? 259No 265Rf synth 1.1 min SF – 267Rf synth 48 min SF –

Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt)	caption: alt:
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
most stable isotope
File:Notification-icon-Wikidata-logo.svg Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Cat:data sets (0) · (this table: )

References

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