โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Lawrencium
  • ๐Ÿ‡บ๐Ÿ‡ฆ ะ›ะพัƒั€ะตะฝัั–ะน
  • ๐Ÿ‡จ๐Ÿ‡ณ ้’
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Lawrencium
  • ๐Ÿ‡ซ๐Ÿ‡ท Lawrencium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Lawrencium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืœื•ืจื ืฆื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Lawrentio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒญใƒผใƒฌใƒณใ‚ทใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Lawrencium
  • ๐Ÿ‡ช๐Ÿ‡ธ Lawrencio
  • ๐Ÿ‡ธ๐Ÿ‡ช Lawrencium
  • ๐Ÿ‡ท๐Ÿ‡บ ะ›ะพัƒั€ะตะฝัะธะน

Lawrencium - 103Lr: historical information

  • Discoveror: Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh, Robert M. Latimer
  • Place of discovery: United States
  • Date of discovery: 1961
  • Origin of name : temporary IUPAC nomenclature. The origin of the Amercian Chemical Society preferred name is Ernest O. "Lawrence", inventor of the cyclotron.

Element 103, lawrencium, was discovered in 1961 by Ghiorso and others in Berkeley, California, USA, who bombarded a californium target with boron ions. They obtained perhaps two micrograms. Several lawrencium isotopes including those with masses 253, 254, 255, 256, 257, 258, 259, and 260 are known now.