Electronegativity and Ionic Bonds

The video tutorial explains how to determine which element has greater electronegativity by comparing sodium (Na) and chlorine (Cl) using the periodic table. It highlights that fluorine has the highest electronegativity, and since chlorine is closer to fluorine than sodium, chlorine is more electronegative. The tutorial also demonstrates how to calculate the difference in electronegativity between Na and Cl, which results in an ionic bond due to the significant difference. The video concludes by summarizing the key points and noting that metals generally have lower electronegativity than non-metals.

Which element is more electronegative, sodium or chlorine?

• Sodium

• Chlorine

• Both have the same electronegativity

• It cannot be determined

Why is fluorine important when determining electronegativity?

• It has the highest electronegativity

• It is a metal

• It is the least electronegative element

• It is located at the bottom of the periodic table

What is the electronegativity value of chlorine?

• 1.7

• 3.16

• 2.23

• 0.93

What is the significance of an electronegativity difference greater than 2?

• It indicates no bond

• It indicates a covalent bond

• It indicates an ionic bond

• It indicates a metallic bond

What happens to sodium in an ionic bond with chlorine?

• It remains neutral

• It shares an electron

• It loses an electron

• It gains an electron

What is the typical electronegativity difference threshold for an ionic bond according to some books?

• 2.5

• 1.0

• 3.0

• 1.7

How do metals generally compare to non-metals in terms of electronegativity?

• It varies depending on the element

• Metals and non-metals have the same electronegativity

• Metals have lower electronegativity

• Metals have higher electronegativity