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JEE Main Chemistry question

ChemistrySome Basic Concepts of ChemistryJEE Main

Caesium atoms are the largest naturally occurring atoms. The radius of Cs atom is 2.6 Å. The number of moles of Cs atoms to be laid side by side to give a row of Cs atoms 2.50 cm long is . Find the value of .

Answer: 8

Solution

The diameter of a Cs atom is Å cm, so the number of atoms needed to span 2.50 cm is $ =

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Question ID VK-141632