Which of the following elements does not lose an electron easily?
A. Na
B. F
C. Mg
D. Al
Answer:B
Which of the following elements does not lose an electron easily?
A. Na B. F C. Mg D. Al
Explanation: Flourine has 7 electrons in the outermost orbit. Its atom size is the smallest too. Since it is the most electronegative element, it does not lose an electron easily. Sodium has one valence electron, magnesium has 2 valence electrons, and aluminium has 3 valence electrons. All these metals lose electrons easily.