Template:Infobox lawrencium

Lawrencium, ₁₀₃Lr

Lawrencium
Pronunciation	/lɒˈrɛnsiəm/ ​(lo-REN-see-əm)
Appearance	silvery (predicted)
Mass number	[266] (data not decisive)
Lawrencium 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 Lu ↑ Lr ↓ — nobelium ← lawrencium → rutherfordium
Atomic number (Z)	103
Group	group 3
Period	period 7
Block	d-block
Electron configuration	[Rn] 5f14 7s2 7p1
Electrons per shell	2, 8, 18, 32, 32, 8, 3
Physical properties
Phase at STP	solid (predicted)
Melting point	1900 K ​(1600 °C, ​3000 °F) (predicted)
Density (near r.t.)	14.4 g/cm3 (predicted)
Atomic properties
Oxidation states	common: +3
Electronegativity	Pauling scale: 1.3 (predicted)
Ionization energies	1st: 479 kJ/mol 2nd: 1428.0 kJ/mol (predicted) 3rd: 2219.1 kJ/mol (predicted)
Other properties
Natural occurrence	synthetic
Crystal structure	​hexagonal close-packed (hcp) Hexagonal close-packed crystal structure for lawrencium (predicted)
CAS Number	22537-19-5
History
Naming	after Ernest Lawrence
Discovery	Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research (1961–1971)
Isotopes of lawrencium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 256Lr synth 27.9 s α 252Md β+ 256No 260Lr synth 3.0 min α 256Md β+ 260No 261Lr synth 39 min SF – 262Lr synth 4 h β+ 262No 264Lr synth 4.8 h SF – 266Lr synth 11 h SF –

Lr · Lawrencium
No ← ibox No	iso 103 Lr  [] IB-Lr [] IBisos []	→ Rf ibox Rf
File:Symbol category class.svg cat:Lr (0) File:Symbol category class.svg cat:Lr-isotopes (0) File:Commons-logo.svg Commons File:Wikidata-logo.svg Wikidata:Q1905 File:Wiktionary-logo.svg Wiktionary
indexes by PT (page)

child table, as reused in {IB-Lr}
Main isotopes of lawrencium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 256Lr synth 27.9 s α 252Md β+ 256No 260Lr synth 3.0 min α 256Md β+ 260No 261Lr synth 39 min SF – 262Lr synth 4 h β+ 262No 264Lr synth 4.8 h SF – 266Lr synth 11 h 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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