Easy Chemistry Class 11 Level 2

Which element is the noble gas in period 3?

Period 3 में कौन सा element noble gas है?

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Correct Answer

D. Ar / Ar

Explanation

Step 1: Noble gases are in group 18. Step 2: The group 18 element of period 3 is argon Ar. Step 3: Remember period 3 runs from Na to Ar.

Step 1: Noble gases group 18 में होते हैं। Step 2: Period 3 का group 18 element argon Ar है। Step 3: Period 3 क्रम Na से Ar तक याद रखें।

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