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90
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<<--Previous Element
Thorium
Viewing Protactinium

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Uranium
92
U

238.03
Protactinium
   *
Atomic Number - 91Melting Point  (°C,°F) - 935 °C, 1715 °F 
Atomic Symbol - Pa Boiling Point  (°C,°F) - 3520 °C, 6368 °F 
Atomic Mass - 231.04 Electron Configuration -  [Rn] 5f2 6d1 7s2 
Group - N/A Electrons Per Shell - 2, 8, 18, 32, 20, 9, 2 
Period - 9 Protons - 91 
Series - The Actinides Neutrons -  140 
Block - s-block   
  
 

Element Description - Praseodymium is a chemical element in the periodic table that has the symbol Pr and atomic number 59.

Element Characteristics - Protactinium is a silver metallic element that belongs to the actinide group, with a bright metallic luster that it retains for some time in the air. It is superconductive at temperatures below 1.4 K.
 

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