Element - Pure substance that cannot be broken down into a simpler substance by chemical or physical means., Sodium - Symbol: Na, Compound - Pure substance that can be broken down and composed of 2 or more different atoms. , Lead Sulfide - Composed of lead and sulfur atoms., Molecule - Composed of two or more atoms., Chemical Symbol - The first letter is always capitalized and represents elements. , Atom - The smallest unit of matter and the smallest part of an element., Matter - Anything that has mass and takes up space. , Chemical Formula - Represents compounds and molecules., Subscript - Number that represents the number of atoms present in a chemical formula., Hydrogen Peroxide (H2O2) - 2 atoms of Hydrogen and 2 atoms of Oxygen, Carbon Dioxide (CO2) - Composed of 1 atom of carbon and 2 atoms of oxygen. , Glucose (C6H12O6) - Composed of 3 elements.,

Activity 1: Elements, Compounds, Molecules

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