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Atoms, Elements, and the Periodic Table - Learning Services Home

Atoms, Elements, and the Periodic Table - Learning Services Home

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Name Date ClassDirected Reading forContent MasterySection 2 ■ The Simplest MatterSection 3 ■ Compounds <strong>and</strong>MixturesDirections: Circle <strong>the</strong> two terms in each group that are related. Then explain why <strong>the</strong> terms are related.1. copper, iron, salt2. air, milk, waterCopyright © Glencoe/McGraw-Hill, a division of <strong>the</strong> McGraw-Hill Companies, Inc.3. protons, neutrons, mixtures4. mixture, isotope, compoundDirections: Circle <strong>the</strong> term that correctly completes <strong>the</strong> sentence.5. The number of protons in an atom determines its (atomic number/nucleus).6. An element’s (atomic mass/mass number) is an average mass of <strong>the</strong> differentisotopes of <strong>the</strong> element.7. A(n) (compound/element) is matter that is made up of only one kind of atom.8. (Mixtures/Isotopes) are atoms of <strong>the</strong> same element with different numbers ofneutrons.9. (Metals/Metalloids) are <strong>the</strong> best conductors of heat <strong>and</strong> electricity.10. All <strong>the</strong> metals except mercury are (solid/liquid) at room temperature.11. A(n) (compound/element) is a substance whose smallest unit is made up ofmore than one element.12. Matter that has <strong>the</strong> same composition <strong>and</strong> properties throughout is called a(n)(substance/isotope).Meeting Individual Needs<strong>Atoms</strong>, <strong>Elements</strong>, <strong>and</strong> <strong>the</strong> <strong>Periodic</strong> <strong>Table</strong> 17

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