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Ch. 4 Section 1 Review

Elements. Ch. 4 Section 1 Review. Vocabulary To Know. Element- a pure substance that cannot be separated into simpler substances by physical or chemical means Pure substance- a sample of matter, either a single elements or a single compound, that has definite chemical and physical properties

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Ch. 4 Section 1 Review

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  1. Elements Ch. 4 Section 1 Review

  2. Vocabulary To Know • Element- a pure substance that cannot be separated into simpler substances by physical or chemical means • Pure substance- a sample of matter, either a single elements or a single compound, that has definite chemical and physical properties • Metal- an element that is shiny and conducts heat and electricity well • Nonmetal- an element that conducts heat and electricity poorly • Metalloid- an element that has properties of both metals and nonmetals

  3. Properties of Elements • Each element has a unique set of properties • They DO NOT depend on the amount of the element present. • Properties include: boiling point, melting point, density, and reactivity with acid

  4. Categories of Elements • Metals: Shiny and good conductors of heat. Examples- Lead, Tin, and Copper. They are malleable and can be hammered into thin sheets. They are also ductile and can be drawn into thin wire. • Nonmetals: Dull and poor conductors of heat. Examples- Sulfur, Iodine, Neon. Solids tend to be brittle and unmalleable. • Metalloids: Shiny or dull, and semiconductors because they have properties of metals and nonmetals. Examples- Boron, Silicon, and Antimony. Some are malleable and some are ductile.

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