which of the following atoms and ions (are) isoelectronic with Br+: Se2+, Se, As-, Kr, Ga3+,Cl-

Question

Question

Answer 1

Answer #1

Br⁺ = 34 electrons

Se⁺² = 32 electrons

Se = 34 electrons

As^- = 34 electrons

Kr = 36 electrons

Ga⁺³ = 28 electrons

Cl^- = 18 electrons

Se and As^- are isoelectronic having same number of electrons.

Answer 2

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