Element and compound

The video explains that atoms are smaller units than molecules and are the basic building blocks of matter. Atoms combine to form molecules, which can be either compounds or elements. Compounds are formed when different atoms combine, while elements are formed from similar atoms. Examples include oxygen as an element and water as a compound.

What is the smallest unit of matter?

• Molecule

• Element

• Atom

• Compound

What do atoms form when they combine?

• Elements

• Compounds

• Molecules

• Ions

What is formed when different atoms combine?

• Element

• Compound

• Molecule

• Mixture

Which of the following is an example of an element?

• Salt

• Carbon Dioxide

• Oxygen

• Water

Which of the following is a compound?

• Water

• Nitrogen

• Oxygen

• Hydrogen