- atom: Smallest particles of an element having the chemical properties of that element.
- compound: A substance that contains two or more elements chemically combined.
- decomposition: Heating can cause thermal ______________ of compounds into elements or simpler substances.
- diatomic: ____________ molecules consist of two atoms chemically combined together.
- electricity: _____________ can be used to break down compounds into simpler substances.
- metalloids: Elements that have properties of both metals and non-metals.
- monatomic: Elements that exist as individual atoms.
- ratio: A compound consists of different elements chemically combined in a fixed ___________.
- sonorous: A property of metals that causes them to make a ringing sound when struck.