Practice- 6.2.1 Atoms and Molecules

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is a molecule?

Back

A group of two or more atoms chemically bonded together.

Front

What is the chemical formula for carbon dioxide?

Back

CO₂, which indicates it has one carbon atom and two oxygen atoms.

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.

Front

What is a chemical bond?

Back

A force that holds atoms together in a molecule.

Front

What is the term for a substance made of only one type of atom?

Back

Element.

Front

What is the term for a substance made of two or more different elements?

Back

Compound.

Front

What shape does a diamond have at the molecular level?

Back

A pyramid shape.

Front

How many atoms of oxygen are in a molecule of water (H₂O)?

Back

2.

Front

What is the smallest particle of a compound that retains its chemical properties?

Back

Molecule.