BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ionic
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Covalent
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Polar Covalent
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Detailed explanation-1: -According to the Pauling electronegativity scale, the electronegativity of Boron (B) is 2.04 and the electronegativity of F is 3.98. The ED between B and F is then 1.946. Since 1.94 is greater than 1.8, the bond is ionic.
Detailed explanation-2: -So, the ionic bond formed between lithium and fluorine increases the chemical stability of the atoms.
Detailed explanation-3: -One way to predict the type of bond that forms between two elements is to compare the electronegativities of the elements. In general, large differences in electronegativity result in ionic bonds, while smaller differences result in covalent bonds.
Detailed explanation-4: -One example of an ionic bond is the formation of sodium fluoride, NaF, from a sodium atom and a fluorine atom. In this reaction, the sodium atom loses its single valence electron to the fluorine atom, which has just enough space to accept it.