How Do You Read

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How Do You Read. The Periodic Table of the Elements?. Protons + Neutrons. Rows are called Periods. The physical and chemical properties of elements in a row follow a repeating, or periodic, pattern as you move across the period. Columns are called Groups. - PowerPoint PPT Presentation

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How Do You Read

How Do You ReadThe Periodic Table of the Elements?1

Protons + Neutrons2Rows are called Periods

The physical and chemical properties of elements in a row follow a repeating, or periodic, pattern as you move across the period.3Columns are called Groups

Elements in the same group often have similar chemical and physical properties. For this reason, a group is also called a family.4What is Group 1?Group 1 = Alkalai MetalsGroup contains - MetalsElectrons in outer level - 1Reactivity? - Very ReactiveOther shared properties - softness; color of silver; shininess; low density

5What is Group 2?Group 2 = Alkalaline-Earth MetalsGroup contains - MetalsElectrons in outer level - 2Reactivity? - Reactive, but not as much as Group 1Other shared properties - color of silver; higher densities than alkali metals

6What are Groups 3 - 12?

Groups 3-12 = Transition MetalsGroup contains - MetalsElectrons in outer level - 1 or 2Reactivity? - less reactive than group 2 metalsOther shared properties - shininess; good conductors of thermal energy and electric current; higher densities and melting points than elements in Groups 1 and 2 (except for mercury)

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What are the Lanthanides & Actinides?Transition metals from Periods 6 & 7Appear as two rows below the table1st row are the Lanthanides (named after Lanthanum #57)2nd row are Actinides (named after Actinium #89) Placed here so that the Periodic table wouldnt be so wide.8

What is Group 13: Boron group?Group 13 = Boron GroupGroup contains - 1 metalloid & 5 metalsElectrons in outer level - 3Reactivity? - ReactiveOther shared properties - solids at room temperature

9What is Group 14: Carbon group?Group 14 = Carbon groupGroup contains - 1 nonmetal, 2 metalloids & 3 metalsElectrons in outer level - 4Reactivity? - varies among the elementsOther shared properties - solids at room temperature

10What is Group 15: Nitrogen group?Group 15 = Nitrogen groupGroup contains - 2 nonmentals, 2 metalloids & 2 metalsElectrons in outer level - 5Reactivity? - varies among the elementsOther shared properties - solids at room temperature (except for Nitrogen - gas)

11What is Group 16: Oxygen group?Group 16 = Oxygen groupGroup contains - 3 nonmetals, 1 metalloid & 1 metalElectrons in outer level - 6Reactivity? - varies among the elementsOther shared properties - all but Oxygen are solid at room temperature

12What is Group 17: Halogens?Group 17 = HalogensGroup contains - nonmetalsElectrons in outer level - 7Reactivity? - Very ReactiveOther shared properties - poor conductors of electric current, violent reactions with alkalai metals to form salts, never pure in nature

13What is Group 18: Noble Gases?Group 18 - Noble GasesGroup contains - nonmetalsElectrons in outer level - 8Reactivity? - unreactiveOther shared properties - colorless, oderless gases at room temperature

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Why is Hydrogen all alone on the Periodic Table?Electrons in outer level - 1Reactivity? - ReactiveOther properties - colorless, oderless gas at room temperature; low density; explosive reactions with oxygenProperties do not match any other group15Next up - Unit 4 on Chemical Bonding!

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