Lawrencium

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Lawrencium
103Lr
Lu

Lr

(Upt)
nobeliumlawrenciumrutherfordium
Ìhànsójú
unknown, probably silvery, white or metallic gray
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà lawrencium, Lr, 103
Ìpèlóhùn /ləˈrɛnsiəm/
lə-REN-see-əm
Ẹ̀ka ẹ́límẹ̀nti actinide
Sometimes considered a transition metal
Ẹgbẹ́, àsìkò, àdìpò n/a7, d
Ìwúwo átọ́mù [262]
Ìtòléra ẹ̀lẹ́ktrónì [Rn] 5f14 7s2 7p1
2, 8, 18, 32, 32, 9, 2
Physical properties
Phase solid presumably
Atomic properties
Oxidation states 3
Ionization energies 1st: 443.8 kJ·mol−1
2nd: 1428.0 kJ·mol−1
3rd: 2219.1 kJ·mol−1
Miscellanea
CAS registry number 22537-19-5
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù lawrencium
iso NA half-life DM DE (MeV) DP
262Lr syn 3.6 h EC 262No
261Lr syn 44 m SF/EC?
260Lr syn 2.7 m alpha 8.04 256Md
259Lr syn 6.2 s 78% alpha 8.44 255Md
22% SF
258Lr syn 4.1 s alpha 8.68,8.65,8.62,8.59 254Md
257Lr syn 0.65 s alpha 8.86,8.80 253Md
256Lr syn 27 s alpha 8.62,8.52,8.32... 252Md
255Lr syn 21.5 s alpha 8.43,8.37 251Md
254Lr syn 13 s 78% alpha 8.46,8.41 250Md
22% EC 254No
253Lrm syn 0.57 s alpha 8.79 249Md
253Lrg syn 1.49 s 92% alpha 8.72 249Md
8% SF
252Lr syn 0.36 s alpha 9.02,8.97 248Md
· r



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