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Is it possible for a cation to be isoelectronic with anion from the same period? Explain
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Is it possible for a cation to be isoelectronic with anion from the same period? Explain

User GegznaV
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Nope, they're at various closures of the table. say Br and K
(anion) Br picks up an electron to wind up isoelectronic with Kr
(cation) K loses an electron to wind up like Ar
unless K picks up 7 e or Br loses 7 e, this is unthinkable.
User Eric Stein
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