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What is the identity of the element, and how many neutrons does it have? An elements most stable ion forms an ionic compound with chlorine having the formula XCl2. If the ion of element X has a mass of 34 and 18 electrons.



A. Ar, 16 neutrons
B. CA, 14 neutrons
C. Ar, 18 neutrons
D. S, 18 neutrons
E. K, 20 neutrons

This question is part of Chemistry - Semester 1 - Practice Final
Asked by Nickstauffer, Last updated: Jan 17, 2020

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3 Answers

John Adney

John Adney

Answered Jan 19, 2017

34 minus 18 is 16 not 14
 

John Adney

John Adney

Answered Dec 09, 2016

Ar, 16 neutrons
 

John Smith

John Smith

Answered Nov 04, 2016

Ca, 14 neutrons
 

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