in ionic solid why cations are smaller than anions
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In most (but by no means all) ionic compounds the anions are larger than the cations. In these cases it is possible to visualize the structures in terms of a close packed arrangement of the larger anions, with the cations occupying the vacant interstices between the close packed layers.
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Heyaa folk,
As anions form the crystal array, the cations which are small reside in the thin holes in the anions. Remember, when the anions gains electrons making larger than the atom, loses its electrons, making it smaller. When electrons are added to form an anion, the increased electron repulsions cause the electrons to spread out more in space. When an atom loses an electron to form a cation, the lost electron no longer contributes to shielding the other electrons from the charge of the nucleus. And hence, cations are smaller than anions.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
As anions form the crystal array, the cations which are small reside in the thin holes in the anions. Remember, when the anions gains electrons making larger than the atom, loses its electrons, making it smaller. When electrons are added to form an anion, the increased electron repulsions cause the electrons to spread out more in space. When an atom loses an electron to form a cation, the lost electron no longer contributes to shielding the other electrons from the charge of the nucleus. And hence, cations are smaller than anions.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
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