Write the atomic symbol for the element whose monatomic ion has a 2- charge, has 20 more

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Write the atomic symbol for the element whose monatomic ion has a 2- charge, has 20 more neutrons than electrons, and has a mass number of 126.

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Chemistry Principles And Practice

ISBN: 9780534420123

3rd Edition

Authors: Daniel L. Reger, Scott R. Goode, David W. Ball

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