Question

arrange the following bonds in order of increasing ionic character: lithium to fluorine, fluorine to hydrogen, chlorine to fluorine, carbon to hydrogen. lithium to fluorine select fluorine to hydrogen select chlorine to fluorine select carbon to hydrogen select

Explanation:

Step1: Recall ionic - character concept

Ionic character is determined by electronegativity difference ($\Delta\chi$) between two atoms in a bond. Higher $\Delta\chi$ means higher ionic character.

Step2: Find electronegativity values

Electronegativity values: $H = 2.1$, $C = 2.5$, $Cl=3.0$, $F = 4.0$, $Li = 1.0$.

Step3: Calculate $\Delta\chi$ for each bond

For $C - H$: $\Delta\chi=|2.5 - 2.1| = 0.4$.
For $Cl - F$: $\Delta\chi=|3.0 - 4.0| = 1.0$.
For $F - H$: $\Delta\chi=|4.0 - 2.1| = 1.9$.
For $Li - F$: $\Delta\chi=|1.0 - 4.0| = 3.0$.

Step4: Arrange in increasing order

Based on the $\Delta\chi$ values, the order of increasing ionic character is $C - H

Answer:

carbon to hydrogen, chlorine to fluorine, fluorine to hydrogen, lithium to fluorine