This is an archive of past discussions about Isotopes of mendelevium. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page.
This article is part of Wikipedia:Wikiproject Isotopes. Please keep style and phrasings consistent across the set of pages. For later reference and improved reliability, data from all considered multiple sources is collected here. References are denoted by these letters:
(A) G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003). — Where this source indicates a speculative value, the # mark is also applied to values with weak assignment arguments from other sources, if grouped together. An asterisk after the A means that a comment of some importance may be available in the original.
(B) National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database. (Retrieved Sept. 2005, from the code of the popup boxes).
(C) David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes. — The CRC uses rounded numbers with implied uncertainties, where this concurs with the range of another source it is treated as exactly equal in this comparison.
(D) More specific level data from reference B's Levels and Gammas database.
(E) Same as B but excitation energy replaced with that from D.
Z N refs symbol half-life spin excitation energy
101 144 AB |Md-245 |0.90(25) ms |(1/2-)#
101 144 C |Md-245 |0.9 ms |
101 144 A |Md-245m |400(200) ms |(7/2+) |200(100)# keV
101 144 E |Md-245m |0.35(+23-16) s | |~300 keV
101 144 C |Md-245m |~0.4 s |
101 145 ABC |Md-246 |1.0(4) s |
101 146 A |Md-247 |270(160) ms |1/2-#
101 146 B |Md-247 |1.12(22) s |
101 146 C |Md-247 |3. s |
101 146 C |Md-247m |~0.2 s |
101 147 ABC |Md-248 |7(3) s |
101 148 A |Md-249 |24(4) s |(7/2-)
101 148 BC |Md-249 |24(4) s |
101 148 A |Md-249m |1.9(9) s |(1/2-) |100(100)# keV
101 149 AB |Md-250 |52(6) s |
101 149 C |Md-250 |50. s |
101 150 A |Md-251 |4.0(5) min |7/2-#
101 150 BC |Md-251 |4.0(5) min |
101 151 ABC |Md-252 |2.3(8) min |
101 152 A |Md-253 |12(8) min |7/2-#
101 152 B |Md-253 |6(+12-3) min |(1/2-)
101 152 C |Md-253 |~6 min |
101 153 A |Md-254 |10(3) min |(0-)
101 153 BC |Md-254 |10(3) min |
101 153 A |Md-254m |28(8) min |(3-) |50(100)# keV
101 153 D |Md-254m |10(3) min | |0+X keV
101 153 D |Md-254m |28(8) min | |0+Y keV
101 153 C |Md-254m |30. min |
101 154 ABC |Md-255 |27(2) min |(7/2-)
101 155 AB |Md-256 |77(2) min |(1-)
101 155 C |Md-256 |1.30 h |
101 156 ABC |Md-257 |5.52(5) h |(7/2-)
101 157 AC |Md-258 |51.5(3) d |(8-)#
101 157 B |Md-258 |51.5(3) d |
101 157 A |Md-258m |57.0(9) min |1-# |0(200)# keV
101 157 E |Md-258m |57.0(9) min | |0+X keV
101 157 C |Md-258m |57. min |(1-)
101 158 A |Md-259 |1.60(6) h |7/2-#
101 158 B |Md-259 |96(3) min |
101 158 C |Md-259 |1.64 h |7/2+
101 159 A |Md-260 |27.8(8) d |
101 159 B |Md-260 |31.8(5) d |
101 159 C |Md-260 |~27.8 d |
101 160 A |Md-261 |40# min |7/2-#
101 160 B |Md-261 |40# min |
101 161 AB |Md-262 |3# min |
