Template:Infobox einsteinium

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

Einsteinium, ₉₉Es

Quartz vial (9 mm diameter) containing ~300 micrograms of solid 253Es. The illumination produced is a result of the intense radiation from 253Es.
Einsteinium
Pronunciation	/aɪnˈstaɪniəm/ ​(Template:Respell)
Appearance	silvery; glows blue in the dark
Mass number	[252]
Einsteinium in the periodic table
Template:Periodic table (32 columns, micro) Ho ↑ Es ↓ (Upt) californium ← einsteinium → fermium
Atomic number (Z)	99
Group	group n/a
Period	period 7
Block	f-block
Electron configuration	[Rn] 5f11 7s2
Electrons per shell	2, 8, 18, 32, 29, 8, 2
Physical properties
Phase at STP	solid
Melting point	1133 K ​(860 °C, ​1580 °F)
Boiling point	1269 K ​(996 °C, ​1825 °F) (estimated)
Density (near r.t.)	8.84 g/cm3
Atomic properties
Oxidation states	+2, +3, +4
Electronegativity	Pauling scale: 1.3
Ionization energies	1st: 619 kJ/mol
Color lines in a spectral range Spectral lines of einsteinium
Other properties
Natural occurrence	synthetic
Crystal structure	​face-centered cubic (fcc)
Magnetic ordering	paramagnetic
CAS Number	7429-92-7
History
Naming	after Albert Einstein
Discovery	Lawrence Berkeley National Laboratory (1952)
Main isotopes of einsteinium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]] 252Es syn 471.7 d α 248Bk ε 252Cf β− 252Fm 253Es syn 20.47 d SF – α 249Bk 254Es syn 275.7 d ε 254Cf β− 254Fm α 250Bk 255Es syn 39.8 d β− 255Fm α 251Bk SF –

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

Es Template:Wikidata data m.p. cat
	in	calc from C	diff	report	ref
C	860	—	—
K	1133	1130	3
F	1580	1580	0		Template:Subpage other
max precision	0
WD	Template:Wikidata				Template:Wikidata
input	C: 860, K: 1133, F: 1580
comment

Es Template:Wikidata data b.p. cat
	in	calc from C	diff	report	ref
C	996	—	—
K	1269	1269	0
F	1825	1825	0		Template:Subpage other
max precision	0
WD	Template:Wikidata				Template:Wikidata
input	C: 996, K: 1269, F: 1825
comment	(estimated)

PTEinsteinium

Cf ← i'box Cf	iso 99Es () infobox () isobox	→ Fm i'box Fm
Commons  Wikidata:Q1892  Wiktionary Indexes in PT: § below · Page

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

These references will appear in the article, but this list appears only on this page.