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Compounds containing chlorine have long been used to disinfect the water in swimming pools, but in recent years a compound of a less corrosive halogen has become a popular alternative disinfectant. What is the name of this fourth-row element

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naningvinluan

Explanation:

A period 4 element is one of the chemical elements in the fourth row (or period) of the periodic table of the elements.

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Period 4 element.

Hydrogen Rubidium

Strontium

Yttrium

Zirconium

Niobium

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