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 Osmium Symbol Os Atomic Nº 76 Atomic weight 190.233
Oxidation Nº 0 to 8 State (RT) Solid Electronegativity 2.2 Shell 2,8,18,32,14,2
Structure Xe4f145d66s2 MP °C 3045 BP °C 5027 SG 22.57
Nº Isotopes 7 Isotope 192 Isotope AMU 191.961479 Abundance 40.7819
Discoverer Tennant 1803 Click for more information
Osmium tetroxide fixes lipids for light and electron microscopy. They then resist fat solvents and appear black in paraffin sections. Use with caution as it causes severe headaches when fumes are inhaled. Always use in a fume chamber.
Alkali metals Alkali earth metals Transition metals Lanthanides Actinides Poor metals Metalloids Non metals Halogens Noble gases

 


 

 

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