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In order to remove one electron from a 3S orbital of gaseous sodium atom, about...

Chemistry
JAMB 1999
In order to remove one electron from a 3S orbital of gaseous sodium atom, about 496KJMol-1 of energy is required. This energy is referred to as
  • A. electron affinity
  • B. ionization energy
  • C. activation evergy
  • D. electronegativity
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Correct Answer: Option B
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