Front

What is an elemental molecule?

Back

An elemental molecule is a molecule that consists of two or more atoms of the same element bonded together, such as O2 (oxygen) or N2 (nitrogen).

Front

What is a molecule?

Back

A molecule is formed when two or more atoms are chemically bonded together. It can consist of the same or different elements.

Front

What are molecules?

Back

Molecules are groups of two or more atoms bonded together, which can be of the same or different elements.

Front

What are elements?

Back

Elements are pure substances that cannot be broken down into simpler substances by chemical means. Examples include carbon, oxygen, and hydrogen.

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Front

What is a compound molecule?

Back

A compound molecule is a molecule that consists of two or more different elements bonded together, such as H2O (water) or CO2 (carbon dioxide).

Front

What is the difference between a mixture and a molecule?

Back

A mixture is a combination of two or more substances that are not chemically bonded, while a molecule is a group of atoms that are chemically bonded together.

Front

What is the significance of valence electrons?

Back

Valence electrons are important because they determine how an atom can bond with other atoms to form molecules.

Front

Can a molecule be made of only one type of atom?

Back

Yes, a molecule can consist of only one type of atom, such as O2 (oxygen gas), which is an elemental molecule.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a molecule, which can be ionic or covalent.