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Question

Which of the following statement is not correct for the element having electronic configuration 1s22s22p63s1?


A

It is a monovalent electropositive

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B

It forms basic oxide

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C

It is a non-metal

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D

It has low electron affinity

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Solution

The correct option is C

It is a non-metal


1s22s22p63s1

Take a look at the electron in the last shell. We can infer that this element belongs to the 1st group of the periodic table.

So, it must be monovalent and we can say that it forms basic oxides.

Also, we can surely say that it has a very low electron affinity as these elements have the tendency to lose electrons.


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