extended periodic table
  

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Periodic Table

 

Pm
61
Np
93
Uqt
143
Uet
193
 
 

Neptunium

SymbolNp
Atomic Number93
Relative Atomic Mass
12C = 12.0000		[ 237 ]
237.0482 
Significant Atomic Mass239
Neutrons  146
Atomic Radius  pm150
First Ionisation Energy
kJ mol -1		597
Electronegativity1.36
Density  kg m -320250 [293 K]
Molar Volume cm 311.71
Thermal Conductivity
W m -1 K -1		6.3 [300 K]
Melting Point K913
Boiling Point K4175
Number of Isotopes21
Isotopes of superheavy elements234 Np  4.4 day
235 Np  1.085 year
236 Np  1.55x105 year/ 22.5 h
237 Np  2.14x106  year
238 Np  2.117 day
239 Np  2.355 day
 
Inner + outer Shells
  4  +  3   =7
Inner + outer Orbitals
  60  +  33   = 93
   

??? (NIST 2002)

  Algorythm of Software
ground stateAlgorythm ground state

  2, 8, 18, 32,  

  22, 9, 2   

  2, 8, 18, 32,  

  23, 8, 2   

Distribution of electrons 
 
s
p
d
f
1
2
 
 
 
2
2
6
 
 
3
2
6
10
 
4
2
6
10
14
5
2
6
10
4
6
2
6
1
 
7
2
 
 
 
 spdf
12   
226  
32610 
4261014
526105
626  
72   
 
Filling Orbital 
  6d1    
  5f 5   
Ground State Electron Configuration
[Rn]  5f 4     6d1    7s 2 
[Rn]  5f 5     6p 6  7s 2 
 
Ground State Electron Configuration with free Orbitals (n= 25)

  0, 0, 0, 0, 10, 9, 6  

  0, 0, 0, 0, 9, 10, 6  

free OrbitalsAlgorythm free Orbitals
 

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

 0, 0, 0, 0, 18, 54, 90  

 0, 0, 0, 0, 18, 54, 90  

compressed OrbitalsAlgorythm compressed Orbitals
 
Singularity
280= 60+33+25+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
5
9
18
 
 
 
6
2
6
10

14

18
22
 
 
7
2
6
10
14
18
22
26
 
8
 
 
 
 
 
 
 
 
 
Term Symbol6 L 11/2
CAS Reg-ID:7439-99-8
DiscoveryE. McMillan and P.H. Abelson (Berkeley, USA) in 1940
Name Derived FromNamed after the planet Neptune
 

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APSIDIUM   Created:    

2002-08-15

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2006-11-05