Molecules

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

Are all molecules compounds?

Back

No, not all molecules are compounds. A molecule can be an element (like O2) or a compound (like H2O).

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

What is an element molecule?

Back

An element molecule consists of two or more atoms of the same element bonded together, such as H2 (hydrogen gas).

Front

What are subatomic particles?

Back

Subatomic particles are the smaller particles that make up an atom, including protons, neutrons, and electrons.

Front

Which subatomic particle has a negative charge?

Back

Electrons have a negative charge.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral subatomic particles found in the nucleus of an atom, with no charge.

Front

What is the atomic structure?

Back

The atomic structure consists of a nucleus (containing protons and neutrons) surrounded by electrons in orbitals.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for chemical bonding.