Covalent and VSEPR Theory

Front

What type of bond is present in NH₃?

Back

Covalent polar

Front

How many valence electrons does nitrogen gain when forming an ionic bond?

Back

3

Front

What is the molecular geometry of a molecule with a central atom bonded to three other atoms and no lone pairs?

Back

Trigonal Planar

Front

How is a single covalent bond represented in a chemical formula?

Back

A single dash (H—H)

Front

Which molecule has a trigonal planar geometry?

Back

BF₃

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electron pairs between atoms.

Front

What is VSEPR theory?

Back

Valence Shell Electron Pair Repulsion theory; it predicts the geometry of molecules based on electron pair repulsion.

Front

What is the shape of a molecule with two bonding pairs and one lone pair?

Back

Bent

Front

What is the difference between polar and non-polar covalent bonds?

Back

Polar covalent bonds have unequal sharing of electrons, while non-polar covalent bonds have equal sharing.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

Approximately 109.5 degrees.