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11th Class Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank 11th CBSE Chemistry Classification of Elements and Periodicity in Properties

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    Arrange the following elements in the increasing order of non-metallic character : B, C, Si, N, F.

    Answer:

                    Arranging the elements into different groups and periods in order of their increasing atomic numbers, we have, 13           14           15           16           17 B             C             N             -              F -              Si             -              -              - Since the metallic character increases down the group and non-metallic character increases along a period from left to right, therefore, Si is the most metallic or the least non-metallic element. The overall increasing order of non- metallic character is: \[Si<B<C<N<F\].


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