Q9 of 45 Page 543

Arrange the following elements in the increasing order of their atomic radii.

Li, Be, N and F

As tha atomic radii decreases along a period.


Thus, the elements will be arranged in the following increasing order


F<N<Be<Li


As the atomic size decrease when we across the period because the atomic number increases which attract the outermost electrons strongly due to which the size of elementsdecreases as we go frm left to right in a period.


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