Which of the following is the correct electronic configuration of sodium?

(a) 2, 8, 1

(b) 8, 2, 1

(c) 2, 1, 8

(d) 2, 8, 2

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Solution

(a) 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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Which of the following is the correct electronic configuration of sodium? (a) 2, 8, 1 (b) 8, 2, 1 (c) 2, 1, 8 (d) 2, 8, 2

(a) 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.

Which of the following is the correct electronic configuration of sodium?

(a) 2, 8, 1

(b) 8, 2, 1

(c) 2, 1, 8

(d) 2, 8, 2

(a) 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.