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Elements

Thallium - Tl

The element Thallium, atomic number 81, is formed from planetary nebula, which results from red giant death.

      1. Name:
      2. Thallium
      1. Symbol:
      2. Tl
      1. Atomic number (protons):
      2. 81
      1. How created:
      2. planetary nebula
      1. Process:
      2. red giant death
      1. How created (secondary):
      2. neutron star merger
      1. Group (column):
      2. 13
      1. Period (row):
      2. 6
      1. Atomic weight:
      2. 204.380000000
      1. Melting point:
      2. 577 K
      1. Boiling point:
      2. 1746 K
      1. Density:
      2. 11.8500000 g/cm3

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