Which one of the following is not isoelectronic with the others: Br^-, Rb⁺, Se^2-, Sr²⁺, Te^2- A) Br^- B) Rb⁺ C) Se^2- D) Sr²⁺ E) Te^2-

Name: Which one of the following is not isoelectronic with the others: Br - , Rb + , Se 2- , Sr 2+ , Te 2- A) Br - B) Rb + C) Se 2- D) Sr 2+ E) Te 2-
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Question

Quizplus · Accepted Answer

Te^2- has 54 electrons, while Br^-, Rb⁺, Se^2-, and Sr²⁺ all have 36 electrons, making Te^2- not isoelectronic with the others.

Which One of the Following Is Not Isoelectronic with the Others