Covalent Bonding and Electron Dot Structures

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

The bond angle in a tetrahedral molecular geometry is 109.5 degrees.

Front

What is the bond angle in a trigonal planar molecular geometry?

Back

The bond angle in a trigonal planar molecular geometry is 120 degrees.

Front

What is the bond angle in a linear molecular geometry?

Back

The bond angle in a linear molecular geometry is 180 degrees.

Front

What is the Lewis dot structure of H2S?

Back

The Lewis dot structure of H2S shows the sulfur atom in the center with two hydrogen atoms bonded to it, and two lone pairs of electrons on the sulfur.

Front

Which of the following is a covalent compound: CO2, NaCl, AlF3, MgO?

Back

CO2 is a covalent compound.

Front

What is molecular geometry?

Back

Molecular geometry refers to the three-dimensional arrangement of atoms in a molecule.

Front

What is the shape of a molecule with a trigonal pyramidal geometry?

Back

A trigonal pyramidal geometry has a central atom with three bonded atoms and one lone pair, resembling a pyramid.

Front

What is a lone pair of electrons?

Back

A lone pair of electrons is a pair of valence electrons that are not shared with another atom.

Front

What is the significance of bond angles in molecular geometry?

Back

Bond angles are significant because they determine the shape of the molecule, which affects its reactivity and properties.