Atomic radius of group 18 is greater than group 17
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As we move across the period in the periodic table, atomic size decreases up to halogens but increases in noble gases because in case of group 18 called inert or noble gases all the orbitals are completely filled and hence inter electronic repulsion are maximum so there radius is greater than group 17.
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As we move across the period in the periodic table, atomic size decreases up to halogens but increases in noble gases because in case of group 18 called inert or noble gases all the orbitals are completely filled and hence inter electronic repulsion are maximum so there radius is greater than group 17.
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