Chemical Bonds

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

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 potassium (K) have?

Back

Potassium (K) has 1 valence electron.

Front

What is the significance of the periodic table's periods?

Back

The periods on the periodic table indicate the number of energy levels in the electron cloud of the elements.

Front

What determines an atom's reactivity?

Back

An atom's reactivity is primarily determined by its valence electrons.

Front

What are ionic bonds?

Back

Ionic bonds are formed when one atom donates an electron to another atom, resulting in the attraction between positively and negatively charged ions.

Front

What are covalent bonds?

Back

Covalent bonds are formed when two atoms share one or more pairs of electrons.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that shows the bonding between atoms and the lone pairs of electrons in a molecule.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond 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 polar and nonpolar covalent bond?

Back

A polar covalent bond occurs when electrons are shared unequally between atoms, while a nonpolar covalent bond occurs when electrons are shared equally.