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Elements

Iridium - Ir

The element Iridium, atomic number 77, is formed from neutron star merger, which results from .

      1. Name:
      2. Iridium
      1. Symbol:
      2. Ir
      1. Atomic number (protons):
      2. 77
      1. How created:
      2. neutron star merger
      1. How created (secondary):
      2. planetary nebula
      1. Group (column):
      2. 9
      1. Period (row):
      2. 6
      1. Atomic weight:
      2. 192.217000000
      1. Melting point:
      2. 2719 K
      1. Boiling point:
      2. 4701 K
      1. Density:
      2. 22.5600000 g/cm3

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