Building Blocks

All matter is made up of small, microscopic particles called atoms. Atoms combine with each other to form different elements. Atoms join together by forming a chemical bond - this bond is formed when atoms get together and share electrons with each other.

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Photo of atom

Helium atom (not to scale)
Photo Credit: Wikimedia Commons

 
Photo of molecule

Carbonyl Molecule - 6 bonded atoms
Photo Credit: Wikimedia Commons

 
Animation of motion of gas molecules

Motion of gas molecules
Photo Credit: Wikimedia Commons

Microscopic eyes