An element having electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1}$ forms ?

Acidic oxide

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Basic oxide

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Amphoteric oxide

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None

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Solution

The correct option is B Basic oxide
According to configuration last electron belongs to the s subshell so its belongs from s block elements so it is a metal and metal forms always basic oxide.

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An element having configuration 1s²2s²2p⁶3s²3p⁶4s¹ will form:

An element having electronic configuration 1s², 2s² 2p⁶, 3s² 3p⁶, 4s¹ forms

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1}

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1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{1}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}

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