Chemistry

Chemistry

Problem

Successive ionization energies of calcium and a transition element X are shown. ![](https://storage.googleapis.com/diraq-contents/PROD/homework-question-parsing/marker/20260302T060802Z/f2366e03f4044b8d8e55620a7af0e23b/46f43cb4ffd47565e7c0ca306d461435_img.jpg)

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