Bond Polarity and Electronegativity
Chemistry ⇒ Chemical Bonding and Structure
Bond Polarity and Electronegativity starts at 10 and continues till grade 12.
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Describe how electronegativity changes across a period in the periodic table.
Describe how electronegativity changes down a group in the periodic table.
Describe what is meant by a dipole moment in a molecule.
Explain why BF3 is a nonpolar molecule even though the B–F bonds are polar.
Explain why CO2 is a nonpolar molecule even though it contains polar bonds.
Explain why H2O is a polar molecule.
Explain why the H–Cl bond is polar.
If a molecule has polar bonds but is symmetrical, what is the overall polarity of the molecule?
If the electronegativity difference between two atoms is 0.4, what type of bond is likely to form?
In the molecule HF, which atom has a partial negative charge?
In the molecule NH3, which atom is the most electronegative?
Name the scientist who developed the most widely used scale for electronegativity.
State whether the following bond is polar or nonpolar: C–H bond.
State whether the following molecule is polar or nonpolar: CH4.
The electronegativity of carbon is 2.5 and that of hydrogen is 2.1. Is the C–H bond polar or nonpolar?
The electronegativity of hydrogen is 2.1 and that of oxygen is 3.5. Calculate the difference in electronegativity between hydrogen and oxygen.
What is electronegativity?
