Ionic and Covalent compounds

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 non-metal.

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 non-metal atoms.

Front

What are valence electrons?

Back

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

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed from ionic bonds and consist of ions, while covalent compounds are formed from covalent bonds and consist of molecules.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

How do you determine the charge of an ion?

Back

The charge of an ion is determined by the loss or gain of electrons; losing electrons results in a positive charge, while gaining electrons results in a negative charge.

Front

What is the significance of 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 chemical formula for sodium chloride?

Back

The chemical formula for sodium chloride is NaCl.

Front

What happens to energy during the formation of ionic bonds?

Back

Energy is released when ionic bonds are formed as the system becomes more stable.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded together, which can act as a single unit in chemical reactions.