Which of the following represents elements in increasing order of their atomic size ?
I , Br , Cl
N, O ,F
Be , Mg , Ca
Se , S ,O
As we have learned
Vander Waals Radius -
It represents the overall size of the atom which includes its valence shell in a non- bonded situation.It is half the distance between two similar atoms in separate molecules in a solid.Vanderwaals radius > metallic radius > covalent radius.
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Atomic size increases as we move down in a group
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