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Question

Which of the following elements does not lose an electron easily?


A

Na

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B

F

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C

Mg

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D

Al

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Solution

The correct option is B

F


Elements try to attain the nearest noble gas configuration by losing or gaining electrons.

Fluorine has 7 electrons in its outer shell. These 7 electrons are bound tightly by the nucleus. It has a tendency to gain an electron to achieve the nearest noble gas configuration.

However, Na, Mg and Al tend to lose electrons to acheive the nearest noble gas configuration.


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