The video explains the differences between atoms, molecules, and compounds:
An atom is the smallest unit of matter, made of protons (positively charged), neutrons (neutral), and electrons (negatively charged). Protons and neutrons are located in the nucleus, while electrons orbit around it. The atomic number is determined by the number of protons.
A molecule forms when atoms are chemically bonded, often by sharing electrons (covalent bonds). Molecules can be made of the same type of atoms (e.g., ozone) or different types (e.g., water: H₂O).
A compound is a type of molecule made from different elements bonded together chemically (e.g., sugar made from carbon, hydrogen, and oxygen).
Additionally, an element is a pure substance made up of only one type of atom and is listed on the periodic table.
Atom-Compound-Mixture Free Worksheet
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