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An Element's Most Stable Ion Forms an Ionic Compound with Chlorine

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An element's most stable ion forms an ionic compound with chlorine having the formula XCl2.If the ion of element X has a mass number of 89 and 36 electrons,what is the identity of the element X,and how many neutrons does it have?


Definitions:

Dual-Coding Hypothesis

The assertion that long-term memory can code information in two distinct ways, verbally and visually, and that items coded both ways (e.g., pictures and concrete words) are more easily recalled than items coded in only one way (e.g., abstract words).

Remember

The cognitive process of recalling information or experiences from the past.

Word Pairs

A method used in memory studies, where two words are presented together as a pair to be remembered by the participant.

Mirror Image Reversal

The phenomenon where an image or object is reversed from left to right, as seen in a mirror reflection.

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