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Periodic Table Objective: We will be able to explain what the periodic table is and how it is organized. Prior Knowledge • We already know that all matter is made from atoms and that atoms make up the elements. • Name the particles that make up an atom TPS: What is the center of an atom called? 1? What particles make up the center of an atom? 2 ? 3electrons 1 TPS: What particles are always on the outer shells? 3? 2 Protons And Neutrons Today we will learn how atoms are arranged on the periodic table. Concept: Periodic Table Periodic Table: 1. Contains all known elements 2. Each element has a name, chemical symbol, and atomic number 3. Organized by the elements' chemical property, which is their Atomic Number TPS: In your own words explain how the periodic table is organized. Concept: Periodic Table 1. 2. 3. Contains all known elements Each element has a name, chemical symbol, and atomic number Organized by the elements' chemical property, which is their Atomic Number Periodic Table •Each column is called a group •Elements in a group have alike properties Choral: What is this group called? Noble Gasses Periodic Table: Element • Periodic Table: 1. Contains all known elements 2. Each element has a name, chemical symbol, and atomic number 3. Organized by the elements' chemical property, which is their Atomic Number Each element is arranged in a box on the Periodic Table. The box contains the element’s chemical properties The atomic number stands for the number of protons in the nucleus. 6 C Carbon A chemical symbol is a short form of the element’s name. TPS: What information can be found about an element in the box on the periodic table? Periodic Table: 1. 2. 3. Concept: Periodic Table Contains all known elements Each element has a name, chemical symbol, and atomic number Organized by the elements' chemical property, which is their Atomic Number •Colors-shades, indicate whether the elements are metals, semimetals, or nonmetals Metals Semimetals Nonmetals TPS: What do the colors-shades, indicate about the elements? What would the classification be of the Noble Gasses and other darkly shaded elements? Skill Development: Teacher Model and Guided Practice • Steps: 1. 2. 3. 4. Read paragraph Refer to question Underline evidence from text Answer question Please open your Science Workbook to page 193: Teacher Model page 193 question #3 Guided Practice page 193 question #4 Independent Practice pages 193 question #5 and #6 Relevance It is relevant to learn about the periodic table because: 1. In the past people believed that there were only 4 elements now we know that there are over 100 elements 2. Everything is made of elements 3. A reason of your own. TPS: Which reason is most relevant to you? Concept Closure Skill closure: • TPS: What type of element does each color- shade, on the periodic table represent? Key – How do you know? Metals Semimetals Nonmetals • WB: Draw a periodic table box containing an element from the noble gas group. Label the parts. Concept Closure: • Exit Ticket : In your own words explain how the periodic table is organized.