extended periodic table
 
 

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Algorythm ground state

  2, 8, 18, 32,  

  28, 8, 2   

 

 

 

  Dy
66
Cf
98
Uqo
148
Ueo
198
  

Californium

SymbolCf
radioactive rare earth metal  
Atomic Number98
Relative Atomic Mass
12C = 12.0000
[ 251 ]
251.0796
898 year / 9.0x102 year
Significant Atomic Mass251
Neutrons 
153
Atomic Radius  pm169
First Ionisation Energy
kJ mol -1
608
Electronegativity1.3
Density   kg m -3n/a
Molar Volume cm 3n/a
Thermal Conductivity
W m -1 K -1
10 [300 K] (est.)
Melting Point K1170K = 900°C
Boiling Point Kn/a
Number of Isotopes18
Isotopes of superheavy elements

249 Cf  351  year
250 Cf  13.1 year
251 Cf  898 
year
252 Cf  2.65
year
253 Cf  17.8 day
254 Cf  60.5 day
255 Cf  1.4  h
256 Cf  12.3 min

Inner + outer Shells
  4  +  3   =7
Inner + outer Orbitals
  60  +  38   =98
Filling Orbital
  5f 10   
Ground State Electron Configuration
[Rn]  5f 10     6p6  7s2  
 
Ground State Electron Configuration with 
free Orbitals (n= 20 )

 

  0, 0, 0, 0, 4, 10, 6  

 

Algorythm free Orbitals
 

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

 

 0, 0, 0, 0, 18, 54, 90  

Algorythm compressed Orbitals
 
Singularity
28060+38+20+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
10
4
18
   
6
2
6
10

14

18
22
  
7
2
6
10
14
18
22
26
 
8
        
 
Term Symbol5I 8
CAS Reg-ID:7440-71-3
DiscoveryProduced by S.G. Thompson, K. Street Jr., A. Ghiorso and G.T. Seaborg (Berkeley, USA) in 1950
  
Name derived fromNamed after the state of California and the University of California (USA).
  
DescriptionCalifornium-252 is a strong neutron emitter and one microgram emits 170 million neutrons per minute, making it a biological hazard. Proper safeguards should be used in handling californium.
  

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APSIDIUMCreated:    
2002-08-15
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2006-11-05