5 Questions
What is the primary force holding atoms together in a covalent bond?
Electrostatic attraction
What is the shape of a molecule with a trigonal planar arrangement of electron pairs?
Trigonal planar
Which of the following types of bonds is typically found in metals?
Metallic bonds
What is the correct order of increasing bond strength?
Hydrogen bond, covalent bond, ionic bond
What type of bond is formed when a highly electronegative atom, such as oxygen, bonds with a less electronegative atom, such as hydrogen?
Polar covalent bond
Study Notes
Covalent Bonds
- The primary force holding atoms together in a covalent bond is the sharing of one or more pairs of electrons.
Molecular Shapes
- A molecule with a trigonal planar arrangement of electron pairs has a shape resembling a triangle, with all atoms in a single plane.
Metallic Bonds
- Metallic bonds are typically found in metals, where electrons are delocalized and free to move throughout the metal lattice.
Bond Strength
- The correct order of increasing bond strength is: ionic < polar covalent < nonpolar covalent.
Electronegative Bonds
- When a highly electronegative atom, such as oxygen, bonds with a less electronegative atom, such as hydrogen, a polar covalent bond is formed.
Test your knowledge of chemical bonding, including covalent bonds, electron pair arrangements, and bond strengths. This quiz covers the key concepts of OCR A Combined Science Chemistry C2.
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