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2012-06-21 23:37:27

Stable tin, as we know it, comprises 112 nuclear particles – 50 protons and 632 neutrons.


Word of the Day
ultimo
  • In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.
  • In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.
The word 'ultimo' comes from the Latin phrase 'ultimo mense', 'in the last month'.
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