AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which has the greater electronegativity:H, N, O or F?
A
H
B
F
C
N
D
O
Explanation: 

Detailed explanation-1: –We can arrange all the given elements in increasing order of their electronegativity are as follows. H (2.1) < Cl (3) < N (3.04) < F (4).-Therefore Fluorine has high electronegativity among the given elements.

Detailed explanation-2: -F is the most electronegative element on the periodic table. Followed by O, then N and Cl. In general the electronegativity of an element increases as one goes up a family.

Detailed explanation-3: -This is because Fluorine is more electronegative than Hydrogen and therefore pulls the electrons in the covalent bond closer towards it. This means that the Fluorine atom is slightly negative, while the Hydrogen atom is slightly positive.

Detailed explanation-4: -Reason: Oxygen is more electronegative than hydrogen.

Detailed explanation-5: -Nitrogen is more electronegative .

There is 1 question to complete.