Most ionic vs most covalent

[Jolene Robles 2H]

Hello,

For weeks 5/6 homework assignment I am confused on how you know whether which chemical bonds are ionic and covalent? For example in question 10 we had to arrange which bonds were most ionic and covalent My question is what do you look at/where to determine how bonds are covalent or ionic?

[Timothy Li 3A]

We look at the electronegativity differences. A large electronegativity difference leads to a more ionic bond whereas a smaller electronegativity difference leads to a more covalent bond. For number 10 on achieve, K - F is the most ionic because they have the largest electronegativity difference (furthest from each other on periodic table). F - F is the most covalent because there is no difference.

[Valeria Perez 3J]

When determining the ionic or covalent character of bonds, you want to look at the electronegativity of the atoms involved. The higher the difference between the atoms' electronegativity, the higher the ionic character of the bond. Likewise, the closer in electronegativity they are, the bond will have a more covalent character.

[Lexi Saket 2B]

This question wants you to compare electronegativity differences. The greater the electroneg difference the more ionic character as the electrons are pulled to the more electronegative element creating a dipole (partial positive and partial negative) charges.