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Hydrogen is the first element on the periodic table. It's a colorless, odorless, tasteless gas that's highly flammable and combines with oxygen to form water.
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Proton: A subatomic particle found in the nucleus of every atom. It carries a positive electric charge.
Electron: A subatomic particle that orbits around the nucleus of an atom and carries a negative electric charge.
Covalent Bond: A type of chemical bond where two atoms share electrons, often seen with hydrogen atoms.