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Slide 1Calcium By: Heba Abu-kwaik 7 th Grade Science Class Slide 2 Number of Energy Levels: 4 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 8 Fourth Energy…

Slide 1Warm-up 1/29/08 1. Multiple these exponents ( x 6 ) ( w 2 ) ( x 5 ) ( y 9 ) ( w 4 ) ( x 8 ) 2. Simplify. x -4 · y 3 · z 5 · x 5 · y -1 ÷ z 2 Slide 2 PS-2.3 Explain…

Slide 1The Periodic Table J. McLeod H. Chemistry Slide 2 Slide 3 Essential Question  How is the periodic table arranged? Slide 4 A little history… Dmitri Mendeleev:…

1.Periodic Relationships T- 1-855-694-8886 Email- [email protected] By iTutor.com 2. PERIODIC TRENDS IN PROPERTIES OF ELEMENTS  There are many observable patterns in the…

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1. Periodic Table of Elements 2. ElementsScience has come along way since Aristotle’s theory of Air, Water, Fire, and Earth.Scientists have identified 90 naturally occurring…

Thorium Named after Thor, the Viking Norse God of Thunder. Atomic Structure: Number of Energy Levels: 7 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18…