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प्रश्न
Which of the following is the correct electronic configuration of sodium?
विकल्प
2, 8, 1
8, 2, 1
2, 1, 8
2, 8, 2
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उत्तर
2, 8, 1
2, 8, 1 is the correct electronic configuration as the first shell can accommodate 2 electrons and second shell can accommodate 8 electrons. When the inner shell is full, electrons are filled in the outer shell.
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