Covalent Bonds

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 are diatomic elements?

Back

Diatomic elements are molecules composed of two identical atoms bonded together, such as O2 (oxygen) and N2 (nitrogen).

Front

Which elements are considered diatomic?

Back

The diatomic elements are Hydrogen (H2), Nitrogen (N2), Oxygen (O2), Fluorine (F2), Neon (Ne2), Chlorine (Cl2), Bromine (Br2), and Iodine (I2).

Front

What does it mean for an atom to be stable?

Back

An atom is considered stable when it has a full outer shell of electrons, typically achieved when all its valence electrons are paired.

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 a molecule?

Back

A molecule is a group of two or more atoms bonded together, which can be of the same or different elements.

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 strength of a covalent bond compared to ionic bonds?

Back

Covalent bonds are generally considered to be of intermediate strength compared to ionic bonds, which are typically stronger.

Front

What is an example of a compound formed by covalent bonds?

Back

Water (H2O) is an example of a compound formed by covalent bonds.

Front

What is K2S and how is it formed?

Back

K2S (potassium sulfide) is formed by ionic bonds, not covalent bonds, as it involves the transfer of electrons from potassium to sulfur.