Chapter 8 Review: Covalent compounds

Front

What is a covalent bond?

Back

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

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the Lewis dot structure?

Back

The Lewis dot structure is a diagram that represents the valence electrons of atoms within a molecule, showing how they are shared or transferred.

Front

How many valence electrons does a boron atom have?

Back

Boron has 3 valence electrons.

Front

What is the molecular geometry of BF3?

Back

The molecular geometry of BF3 is trigonal planar.

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

How many lone pairs are in NH3?

Back

NH3 has 1 lone pair of electrons.

Front

What is the name of the compound MgO?

Back

The name of the compound MgO is Magnesium Oxide.

Front

What is the significance of electronegativity in covalent bonding?

Back

Electronegativity is a measure of an atom's ability to attract shared electrons in a bond; it influences bond polarity.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of covalent bond where the electrons are shared unequally between the two atoms, resulting in a dipole moment.