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  • Which of the following element of Group 16 has the greatest value of Ionisation energy?Option: 1 Oxygen<st

Which of the following element of Group 16 has the greatest value of Ionisation energy?

Option: 1

Oxygen


Option: 2

Sulphur


Option: 3

Selenium


Option: 4

Polonium


Answers (1)

best_answer

As we have learnt, 

The value of Ionisation energy decreases on moving down the group due to increase in size of elements. This is due to lessening of the effective nuclear charge down the group due to increase in number of electrons.

Thus, the order of Ionisation enthalpy varies as:

\mathrm{O>S>Se>Te>Po}

Hence, the correct answer is Option (1)

Posted by

HARSH KANKARIA

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