Diagram of Atom Atomic Structure Isotopes STM Chapter 5 Pages 88 108 Electrolysis of Salts Cathode Ray Tube Anode Cathode Opposites attract particles particles particle ANION particle CATION Cathode ray deflection diagram Cathode ray deflection photo 1 Perforated cathode Static on oil drops Radioactive emissions and their charge Gold foil deflects a few alpha particles Model to explain alpha particle deflection Atomic model analogy http www sportslighting com feature ls html 2 Analogy of atom cont Hydrogen ion http www joesentell com panther panther htm http web ics purdue edu drhodes hort410 vgsd13 htm http www skynet ie ceason cormac stuff housefly anim gif Protons and Neutrons in Nucleus Atomic Structure Protons Neutrons Electrons Atomic Structure Atomic Structure Neutrons Protons Electrical charge 0 Mass 1 atomic unit Electrical charge 1 Mass 1 atomic mass unit u 3 Atomic Structure Atomic Structure Electrons Protons Neutrons Make up the NUCLEUS NEW KLEE US Nucleons have mass NEW KLEE ONS Electrons minimal mass Electrical charge 1 Mass almost nothing 1 1837 of a proton Analogy of atom cont Protons and Neutrons in Nucleus http www joesentell com panther panther htm http web ics purdue edu drhodes hort410 vgsd13 htm http www skynet ie ceason cormac stuff housefly anim gif Atomic Structure Atomic Structure Protons Neutrons Electrons Protons Atomic Number Controls properties of elements Constant number for all atoms of the same element 4 Atomic Structure Isotope notation Neutrons Atoms may have different numbers of neutrons Different atomic masses of atoms of the same element ISOTOPES of the same element In class activity In class activity How many neutrons How many nucleons In class activity Electrons Positioned in energy levels First level 2 Second level 8 Higher levels temporarily fill with 8 5 Neils Bohr s electron energy level diagram In Class Activity 3 Periodic Table Groups of the Periodic Table Alkali Metals first column Alkaline Earth Metals second column Halogens next to last column Noble Gases last column http www nyu edu classes tuckerman honors chem lectures lecture 2 node5 html Periodic table with metals nonmetals noted http www specialedprep net MSAT 20SCIENCE StructClassMattHomePage htm 6
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