extended periodic table
 

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Periodic Table

 

 Sc
21
Y
39
La
57
Ac
89
Ubu
121
Usu
171
Bbu
221

Actinium

SymbolAc
Atomic Number89
Relative Atomic Mass
12C = 12.0000		[ 227 ]
227.0277
21.77(2) year
Significant Atomic Mass228
Neutrons  139
Atomic Radius  pm188
First Ionisation Energy
kJ mol -1		499
Electronegativity1.1
Density   kg m -310060 [293 K]
Molar Volume cm 322.6
Thermal Conductivity
W m -1 K -1		12 [300 K]
Melting Point K1320 ± 50
Boiling Point K3470 ± 300
Number of Isotopes26
Inner + outer Shells
  4  +  3   =7
Inner + outer Orbitals
  60  +  29   = 89
   

???

  Algorythm of Software
ground stateAlgorythm ground state

  2, 8, 18, 32,  

 18, 9, 2   

  2, 8, 18, 32,  

 19, 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
 
6
2
6
1

 

7
2
 

 

 

 spdf
12 

 

 

226 

 

32610 
4261014
526101
626 

 

72 

 

 

Filling Orbital 
  6d 1   
  5f 1   
Ground State Electron Configuration
[Rn]  5d 10     6d 1    7s 2 
[Rn]  5f 1    6p 6  7s 2 

 

Ground State Electron Configuration with free Orbitals (n= 29)

  0, 0, 0, 0, 14, 9, 6 

  0, 0, 0, 0, 13, 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+29+29+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
1
13
18

 

 

 

6
2
6
10

14

18
22

 

 

7
2

6

10
14
18
22
26

 

8
 

 

 

 

 

 

 

 

 
Term Symbol2D 3/2
DiscoveryDiscovered by A. Debierne (Paris, France) in 1899
Name Derived FromGreek aktinos meaning 'ray'

line

APSIDIUMCreated:    
2002-08-15
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 Page update:  
2005-09-10