It took 80 Years And The World's Greatest Chemists

Keep exploring at Get started for free, and hurry – the first 200 people get 20% off an annual premium subscription. For thousands of years, water was thought to be an element. That is, until some of the greatest chemists in the world managed to crack it open. LEARN MORE ************** To learn more about this topic, start your googling with these keywords: - Chemical element: is a species of atoms that have a given number of protons in their nuclei. Chemical elements cannot be broken down into simpler substances by any chemical reaction. - Atom: is the smallest unit of ordinary matter that forms a chemical element. - Molecule: is a group of two or more atoms held together by attractive forces known as chemical bonds. - Inflammable air: an old name for hydrogen. - Hydrogen: is the most abundant chemical substance in the universe. Early chemists identified hydrogen gas because it was colorless, odorless and highly combustible. Hydrogen