Ionic and Covalent Bonds

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions, typically between a metal and a nonmetal.

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, usually between nonmetals.

Front

Why do atoms form bonds?

Back

Atoms form bonds to achieve a full outer shell of electrons, which makes them more stable.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

How many valence electrons does oxygen have?

Back

Oxygen has 6 valence electrons.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is the difference between a positive ion and a negative ion?

Back

A positive ion (cation) is formed when an atom loses one or more electrons, while a negative ion (anion) is formed when an atom gains one or more electrons.

Front

What is the formula for sodium chloride?

Back

The formula for sodium chloride is NaCl.

Front

What is the proper name for CO2?

Back

The proper name for CO2 is carbon dioxide.

Front

What happens to the charge of an atom when it gains an electron?

Back

When an atom gains an electron, it becomes a negative ion.