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Physical and Chemical Properties Vocabulary of Instruction:

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Presentation on theme: "Physical and Chemical Properties Vocabulary of Instruction:"— Presentation transcript:

1 Physical and Chemical Properties Vocabulary of Instruction:
8th Grade Unit 2: Physical and Chemical Properties Lesson 1: The Periodic Table Vocabulary of Instruction:

2 1. Periodic Table Is a chart with all the chemical elements organized by increasing atomic number.

3 2. Metals An element that easily gives up its valence electrons in a chemical reaction and that can be classified on its physical properties

4 3. Nonmetals An element which is dull-colored, brittle and non-conductor of electricity or heat. It usually gain or share valence electrons in a chemical reaction.

5 4. Metalloids An element which contain properties of both metals and nonmetals in terms of malleability, ductility, conductivity, and luster.

6 5. Group Group A set of elements comprising a vertical column of the periodic table. There are 18 groups in the Periodic Table.

7 6. Period Period A set of elements comprising a horizontal row of the periodic table. There are 7 periods in the Periodic Table.

8 7. Family A group (vertical column) of elements with similar chemical properties.

9 8. Shell / Energy Level Is the outside part of an atom around the atomic nucleus. In general, elements in the same group contain the same number of valence electrons and elements in the same period contain that number of shells.


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