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JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

Element 'X' belongs to group 17. Among group 17 elements, 'X' has the largest ionization enthalpy. What is the atomic number of 'X'?

Answer: 9

Solution

Fluorine has the highest ionisation enthalpy among the halogens (smallest atomic size within the

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Question ID VK-147133