Template:Infobox mendelevium

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[[Category:Template:Pagetype with short description]]

Mendelevium, 101Md
Mendelevium
Pronunciation/ˌmɛndɪˈlviəm/ (Template:Respell)
Mass number[258]
Mendelevium in the periodic table
Template:Periodic table (32 columns, micro) Tm

Md

(Upp)
fermiummendeleviumnobelium
Atomic number (Z)101
Groupgroup n/a
Periodperiod 7
Block  f-block
Electron configuration[Rn] 5f13 7s2
Electrons per shell2, 8, 18, 32, 31, 8, 2
Physical properties
Phase at STPsolid (predicted)
Melting point1100 K ​(827 °C, ​1521 °F) (predicted)
Density (near r.t.)10.3(7) g/cm3 (predicted)[1]
Atomic properties
Oxidation states+2, +3
ElectronegativityPauling scale: 1.3
Ionization energies
  • 1st: 636 kJ/mol
  • [2]
Other properties
Natural occurrencesynthetic
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for mendelevium

(predicted)[1]
CAS Number7440-11-1
History
Namingafter Dmitri Mendeleev
DiscoveryLawrence Berkeley National Laboratory (1955)
Main isotopes of mendelevium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
256Md syn 1.17 h ε 256Fm
257Md syn 5.52 h ε 257Fm
α 253Es
SF
258Md syn 51.5 d α 254Es
ε 258Fm
β 258No
259Md syn 1.60 h SF
α 255Es
260Md syn 31.8 d SF
α 256Es
ε 260Fm
β 260No
Category Category: Mendelevium
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C 827
K 1100 1100 0
F 1521 1521 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 827, K: 1100, F: 1521
comment (predicted)

Check temperatures Md: no input for C, K, F.

Fm ←

i'box Fm

iso
101
Md (E)
→ No

i'box No

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

References

  1. 1.0 1.1 Fournier, Jean-Marc (1976). "Bonding and the electronic structure of the actinide metals". Journal of Physics and Chemistry of Solids. 37 (2): 235–244. Bibcode:1976JPCS...37..235F. doi:10.1016/0022-3697(76)90167-0.
  2. https://pubs.acs.org/doi/10.1021/jacs.8b09068

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