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 particles are always on the outer shells? 3? TPS: What is the center of an atom called? 1? What particles make up the center of an atom? 2 ? 3 electrons 1 2 Protons And Neutrons Today we will learn how atoms are arranged on the periodic table.

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 TPS: In your own words explain how the periodic table is organized.

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 Periodic Table Noble Gasses Each column is called a group Elements in a group have alike properties Choral: What is this group called?

Periodic Table: Element 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 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. A chemical symbol is a short form of the element’s name. 6 C Carbon TPS: What information can be found about an element in the box on the periodic table?

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: 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: In the past people believed that there were only 4 elements now we know that there are over 100 elements Everything is made of elements 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? How do you know? 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. Key Metals Semimetals Nonmetals