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Atom and Periodic Table Review. Chapter 4 and 5. Atom Basics. How do we determine the number of Protons Neutrons Electrons Valance Electrons Energy Levels. Look at atomic # Mass – Atomic # Look at atomic # Look at group # Look at period #. Atom Basics.
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Atom and Periodic Table Review Chapter 4 and 5
Atom Basics • How do we determine the number of • Protons • Neutrons • Electrons • Valance Electrons • Energy Levels • Look at atomic # • Mass – Atomic # • Look at atomic # • Look at group # • Look at period #
Atom Basics • What does Borh’s model look like? • Center with number of protons and neutrons labels • Rings with dots on them to represent electrons • 1st ring has 2 dots, 2nd ring has 8 dots, 3rd ring has 18 dots • What does a Lewis Dot model look like? • Elements symbol with dots around it to represent the number of VALANCE electrons • Remember put one dot on each side to begin with, only double up with 5 or more electrons.
Periodic Table Basics • To the left of the solid stair step line • To the right of the solid stair step line • Sitting on or below the stair step line • Where are the following types of elements located • Metals • Nonmetals • Metalloids
Periodic Table Basics • Group Names N O B L E G A S Alkal I Metal A E L A K R A T L H I N E M E T A L S B O R O N F am i l Y C A R B O N F am i l Y N I T R O G E N F A M I L Y O X Y G E N F A M I L Y H A L O G E N Transition Metals
