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An electron in a sodium atom gains enough energy to move from the second shell to the third the sodium atom becomes

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When an electron in a sodium  atom gains  enough  energy  to move from  the second shell  to  the third  the sodium atom  becomes  

 an  atom in excited state


Explanation

  • .The   excited state  occurs when  valence  electron absorb  energy.
  • The excited  state  takes the forms of electrons  jumping  from original energy  level ( ground  state)  to  empty  orbital.
  • When atom  is in excited  state  it has  a higher  energy than  in  ground  state

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