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 Hafnium Symbol Hf Atomic Nº 72 Atomic weight 178.492
Oxidation Nº 4 State (RT) Solid Electronegativity 1.3 Shell 2,8,18,32,10,2
Structure Xe4f145d26s2 MP °C 2150 BP °C 5400 SG 13.31
Nº Isotopes 6 Isotope 180 Isotope AMU 179.946549 Abundance 35.0816
Discoverer Coster and von Hevesy 1923  
Not histologically significant.
 
Alkali metals Alkali earth metals Transition metals Lanthanides Actinides Poor metals Metalloids Non metals Halogens Noble gases

 


 

 

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