GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The most electronegative element among the following is
|
|
oxygen
|
|
|
fluorine
|
|
|
sodium
|
|
|
bromine
|
Explanation:
Detailed explanation-1: -2nd .:-Fluorineis the most electronegative element because it has 5 electrons in it’s 2P shell. The optimal electron configuration of the 2P orbital contains 6 electrons, so since Fluorine is so close to ideal electron configuration, the electrons are held very tightly to the nucleus.
Detailed explanation-2: -Fluorine is the most electronegative element but still its electron affinity is less than that of chlorine . It is because of the small size of fluorine.
Detailed explanation-3: -Thus increase in size leads to less attraction of electrons by the same nucleus. Accordingly the order of electronegativity of the given elements would be: Fluorine > Chlorine > Bromine > Iodine.
There is 1 question to complete.