Extended Periodic Table
        

 Atomic No. Order:
  [Picture]

 Alphabetic Order:
  [Picture]

  Periodic Table

  Ground State Electron Configuration

  2, 8, 18,  

  10, 2  

 

 

Ti
22		  Zr
40		  Hf
72		Rf
104		Upq
154		Bnq
204

  Zirconium

SymbolZr
Atomic Number40
Relative Atomic Mass
12C = 12.0000		91.224 (±2)  [Since 1983]
Atomic Radius  pm160
First Ionisation Energy
kJ mol-1		660
Ionisation Energy (eV)6.6339
Electronegativity1.33
Density
kg m-3		6506 [293 K]
5800 [l., m.p.]
Molar Volume  cm314.02
Thermal Conductivity
W m-1 K-1		22.7 [300 K]
Melting Point  K2125
Boiling Point  K4650
Number of Isotopes25
Isotope Atomic mass/u Mole fraction90Zr 89.904 7022(24) 0.5145(40)
91Zr 90.905 6434(23) 0.1122(5)
92Zr 91.905 0386(23) 0.1715(8)
94Zr 93.906 3144(26) 0.1738(28)
96Zr 95.908 275(3) 0.0280(9)
 
Inner + outer Shells
  3  +  2   =5
Inner + outer Orbitals
  28  +  12   =40
Filling Orbital
  4d 2   
Ground State Electron
Configuration
[Kr]  4d 2    5s 2      
Ground State Electron
Configuration with
free Orbitals (n=14)

 

  0, 0, 0, 8, 6  

[Picture]
Ground State Electron
Configuration with
compressed Orbitals (n=56)

 

  0, 0, 0, 14, 42  

[Picture]
 
Singularity
110= 28+12+14+56
 
 
s
p
d
 f
g
h
i
j
1
2
       
2
2
6
      
3
2
6
10
     
4
2
6
2
8

14

    
5
26

10

14

18
   
6
        
7
        
8
        
  
Term Symbol3F 2
DiscoveryIt was discovered in zirconia by the German chemist Martin-Heinrich Klaproth (University of Berlin, Germany) in 1789. Zirconium was first isolated by Swedish chemist Jöns Jacob Berzelius in 1824 (Stockholm, Sweden)  in an impure state, and finally by the chemists D. Lely, Jr. and L. Hamburger in a pure state in 1914.
 
Name Derived FromThe name derives from the Arabic zargun for "gold-like".
 

[Picture]

APSIDIUM  ©  Created:    2002-06-04 

This page as PDF-file
040.pdf

Top Home

 Page update:  2004-06-20