GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is the smallest in size?
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K
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Na
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Li
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Cs
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Explanation:
Detailed explanation-1: -So Lithium-ion is the smallest.
Detailed explanation-2: -Therefore, Li has a larger atomic radius than F as atomic radius decreases across a period due to increasing effective nuclear charge.
Detailed explanation-3: -That is why lithium has a larger atomic radius than beryllium. In fact, atomic radius decreases as you move from left top right across a period.
Detailed explanation-4: -2) Atom size (Atomic radius) decreases from left to right along each period of the periodic table. For example, in the second period, the atomic radius of Nitrogen (N) is smaller than that of Lithium (Li).
Detailed explanation-5: -As the nuclear charge per electron is maximum in F−, it is the smallest in size.
There is 1 question to complete.