Albert Einstein
     

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Periodic Table

ground state

  2, 8, 18, 32,  

  29, 8, 2   

 

 

Ho
67		Es
99		Uqe
149		Uee
199		  

Einsteinium

SymbolEs
Atomic Number99
Relative Atomic Mass
12C = 12.0000		[ 252 ]
252.0830
472 day
Significant Atomic Mass252
Neutrons  153
Atomic Radius  pm203
First Ionisation Energy
kJ mol -1		619
Electronegativity1.3
Density  kg m -3-
Molar Volume   cm 3-
Thermal Conductivity
W m -1 K -1		10 [300 K] (est.)
Melting Point  K1130 ± 30
Boiling Point  K-
Number of Isotopes17
Isotopes of superheavy elements

250 Es  2.2h
251 Es  33 h
252 Es  472 day
253 Es  20.5 day
254 Es  276 day
255 Es  39.8 day
256 Es  7.6 h
257 Es  7.7 day 
 

Inner + outer Shells
  4  +  3   =7
Inner + outer Orbitals
  60  +  39   =99
Filling Orbital
  5f 11   
Ground State Electron Configuration
[Rn]  5f 11     6p6  7s2  
 
Ground State Electron Configuration with 
free Orbitals (n= 19 )

 

  0, 0, 0, 0, 3, 10, 6  

free orbitals
 

Ground State Electron Configuration with compressed Orbitals  (n= 162 )

 

 0, 0, 0, 0, 18, 54, 90  

 compressed Orbitals
 
Singularity
280= 60+39+19+162
 
 
s
p
d
 f
g
h
i
j
1
2
       
2
2
6
      
3
2
6
10
     
4
2
6
10

14

    
5
2
6
10
11
3
18
   
6
2
6
10

14

18
22
  
7
2
6
10
14
18
22
26
 
8
        
 
Term Symbol5I 15/2
CAS Reg-ID:7429-92-7
DiscoveryDiscovered by G.R. Choppin, S.G. Thompson, A. Ghiorso and B.G. Harvey in the deris of the thermonuclear explosion in the Pacific in 1952
 
Name Derived FromNamed after Albert Einstein
  

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APSIDIUM   Created:    
2002-08-15
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2006-11-03
     
 

Einstein in the 21st Century