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The electronic configuration of an element is 1s2, 2s2 2p6 3s2 3p6 3d5 4s1 . This represents its:
(1) Excited state
(2) Ground state
(3)Cationic form
(4) Anionic form
Ans: Ground state
The difference in the mass of 100 moles of sodium atoms and sodium ions is 5.48002grams .compute the mass of an electron
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