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Question
An element having the highest first ionization energy in a given period is :
An element having the highest first ionization energy in a given period is :
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Solution
The correct option is B inert gas
In a period, inert gases have the largest atomic number (Z) for the same number of outermost orbit (n), Therefore, the electrons of inert gasses are more tightly bound to the nucleus than any other elements in a period. Therefore, to release an electron from its outermost shell, it requires more energy than other elements in a period.
In a period, inert gases have the largest atomic number (Z) for the same number of outermost orbit (n), Therefore, the electrons of inert gasses are more tightly bound to the nucleus than any other elements in a period. Therefore, to release an electron from its outermost shell, it requires more energy than other elements in a period.
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