Give the full symbol for the +2 alkaline earth cation that is in the fourth period and

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Give the full symbol for the +2 alkaline earth cation that is in the fourth period and has a mass number 21 greater than its atomic number. Explain.

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Related Book For  answer-question

Introductory Chemistry Atoms First

ISBN: 9780321927118

5th Edition

Authors: Steve Russo And Michael Silver

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