Periodic Table
Histological Application of Elements

  s series
Representative
Elements
d series
Transition Metals
p series
Representative
Elements
Noble
Gases
Group Ia IIa IIIb IVb Vb VIb VIIb VIII Ib IIb IIIa IVa Va VIa VIIa VIIIa
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period 1 H   He
Period 2 Li Be   B C N O F Ne
Period 3 Na Mg   Al Si P S Cl Ar
Period 4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Period 5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Period 6 Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Ti Pb Bi Po At Rn
Period 7 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh Uus Uuo
  f series Transition Metals  
Period 6   Lanthanides Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu  
Period 7   Actinides Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr  
Element Cobalt Symbol Co Atomic Nº 27 Atomic weight 58.9332
Oxidation Nº 2, 3 State (RT) Solid Electronegativity 1.8 Shell 2,8,15,2
Structure Ar3d74s2 MP °C 1495 BP °C 2870 SG 8.9
Nº Isotopes 1 Isotope 59 Isotope AMU 58.9332 Abundance 100
Discoverer Brandt c.1735  
In calcium precipitation methods for alkaline phosphatases, the calcium ion deposited can be replaced with cobalt, then the phosphate replaced with sulphide to give a dark brown, insoluble deposit of cobalt sulphide. Otherwise, not histologically significant.
Alkali metals Alkali earth metals Transition metals Lanthanides Actinides Poor metals Metalloids Non metals Halogens Noble gases

 

Reference
Much of the data for each element was extracted, with permission, from TheMeter Periodic Table
Alessandri, Stefano
Periodic Table of the Elements
TheMeter Internet web site.

Uno Kask
Chemistry: Structure and Changes of Matter
Barnes and Noble Inc., New York, NY., U.S.A.

And the following Periodic tables on the internet:
Apsidium
Element Database
The Periodic Table of Elements on the Internet
Wikipedia under "Periodic Table" and individual elements
Webelements
KTF Periodic Table of the Elements
Dreamweaver Periodic Table

 


 

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