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Elements

Arsenic - As

The element Arsenic, atomic number 33, is formed from Type II supernova, which results from star core collapse.

      1. Name:
      2. Arsenic
      1. Symbol:
      2. As
      1. Atomic number (protons):
      2. 33
      1. How created:
      2. Type II supernova
      1. Process:
      2. star core collapse
      1. Group (column):
      2. 15
      1. Period (row):
      2. 4
      1. Atomic weight:
      2. 74.921595000
      1. Melting point:
      2. 1090 K
      1. Boiling point:
      2. 887 K
      1. Density:
      2. 5.7760000 g/cm3

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