Molecules

Front

What are molecules?

Back

Molecules are groups of two or more atoms bonded together. They can be made up of the same type of atoms (like O2) or different types (like H2O).

Front

What is a compound molecule?

Back

A compound molecule is a molecule that contains at least two different elements. For example, H2O (water) is a compound molecule.

Front

How many valence electrons does Carbon have?

Back

Carbon has 4 valence electrons.

Front

What is the electron in an atom?

Back

The electron is a negatively charged particle that orbits the nucleus of an atom.

Front

Is H2O a compound molecule?

Back

Yes, H2O is a compound molecule.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

Is O2 a compound molecule?

Back

No, O2 is not a compound molecule; it is a diatomic molecule made of two oxygen atoms.

Front

What is the charge of an electron?

Back

The charge of an electron is negative.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the role of valence electrons in bonding?

Back

Valence electrons are involved in forming bonds between atoms, determining how atoms connect to form molecules.