BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Na
|
|
|
Li
|
Detailed explanation-1: -decreases hence Iodine has lowest electronegativity.
Detailed explanation-2: -The element Phosphorous has highest while Na has lowest electronegativity.
Detailed explanation-3: -In the periodic table, on moving from left to right in a period there would be an increase in the electronegativity. And on move from top to bottom in a periodic table it will decrease. So the electronegativity of Sodium is greater than Potassium.
Detailed explanation-4: -In Period 3, sodium with 11 protons is the least electronegative element, and chlorine with 17 protons is the most electronegative element.
Detailed explanation-5: -Therefore, of the elements provided, the element that has the lowest value of electronegativity according to the Pauling scale is Mg, answer choice (E).