The greater the difference in electronegativity (ΔEN) between two atoms, the greater the degree in ionic character in the bond.
If you have a bond between atoms A and B (A-B),
ΔEN = |EN_A - EN_B|
The rules for the type of bond are:
• If ΔEN < 0.5, the bond is nonpolar covalent
• If 0.5 ≤ΔEN < 1.7, the bond is polar covalent
• If ΔEN ≥ 1.7, the bond is ionic
<em>Examples:
</em>
<em>C-H</em>: ΔEN = |2.55 – 2.20| = 0.35; <em>nonpolar covalent
</em>
<em>C-F</em>: ΔEN = |2.55 – 3.98| = 1.43; <em>polar covalent</em>
<em>Na-F</em>: ΔEN = |0.93 – 3.98| = 3.05; <em>ionic
</em>
Answer:
The three specific cone cells in our eyes work together, allowing us to translate these three colors of light into millions of different colors. ... When green and blue light are combined, they make cyan. Red and green light make yellow. And when all three primary colors of light are combined, we see white light.
Explanation:
