Polarity in Chemistry
Explore the concept of polarity in molecules, including electronegativity, bond polarity, and molecular polarity, with this comprehensive worksheet for Grade 9 science students.
Includes
Standards
Topics
Polarity in Chemistry
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following best describes a polar bond?
Electrons are shared equally between atoms.
Electrons are transferred from one atom to another.
Electrons are shared unequally between atoms.
Atoms do not share electrons at all.
2. Which property of an atom is primarily responsible for determining bond polarity?
Atomic mass
Electronegativity
Number of protons
Melting point
3. The unequal sharing of electrons in a covalent bond creates a .
4. A molecule with an overall uneven distribution of charge is called a molecule.
5. Water (H2O) is a nonpolar molecule.
True
False
6. Electronegativity increases from left to right across a period in the periodic table.
True
False
7. Explain the difference between a polar molecule and a nonpolar molecule. Provide an example of each.
8. How does the molecular geometry affect the overall polarity of a molecule, even if it contains polar bonds?
9. Observe the image below depicting polarity. Based on your understanding, describe what the arrows and '+' / '-' symbols represent.
