How many energy levels contain electrons in an atom of zirconium (Zr)?

five cause

The number of energy levels of zirconium is 5, and I know this because it is located in family five. Families are the rows across on the periodic table. The family number is always equal to the number of energy levels.Zirconium: properties of free atoms. Zirconium atoms have 40 electrons and the shell structure is 2.8.

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Explanation:

Sorry i dont understand the question can you rephase it?

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