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Elements

Roentgenium - Rg

The element Roentgenium, atomic number 111, is formed from manmade, which results from particle accelerator.

      1. Name:
      2. Roentgenium
      1. Symbol:
      2. Rg
      1. Atomic number (protons):
      2. 111
      1. How created:
      2. manmade
      1. Process:
      2. particle accelerator
      1. Group (column):
      2. 11
      1. Period (row):
      2. 7
      1. Atomic weight:
      2. 282.000000000
      1. Density:
      2. 28.7000000 g/cm3

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