Head a paper for class notes Record all drawings and data charts in notes Record any writing that is in yellow You do not need to record all of the examples.

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Presentation transcript:

Head a paper for class notes Record all drawings and data charts in notes Record any writing that is in yellow You do not need to record all of the examples at the very end but you should check your understanding using them

INSIDE THE ATOM

NUCLEUS

THE NUCLEUS IS. THE CENTER. OF THE ATOM

TODAY’S MODEL SAYS THE NUCLEUS CONTAINS TWO KINDS OF SUBATOMIC PARTICLES...

SUBATOMIC PARTICLES ARE THE TINY PARTICLES THAT MAKE UP THE ATOM

+ PROTON

POSITIVE ONE A.M.U. IN THE NUCLEUS

+ NEUTRON

NEUTRAL ONE A.M.U. IN THE NUCLEUS

ELECTRON -

NEGATIVE1/2000 A.M.U. ORBITS AROUND NUCLEUS

ELECTRONNEGATIVE 1/2000 A.M.U. ORBITS AROUND NUCLEUS PROTON NEUTRON POSITIVE NEUTRAL ONE A.M.U. IN THE NUCLEUS IN THE NUCLEUS 3 MAIN SUBATOMIC PARTICLES ONE A.M.U.

HYDROGEN H 11

H 11 ATOMIC NUMBER

THE ATOMIC NUMBER IS EQUAL TO THE NUMBER OF PROTONS AN ATOM HAS. THE NUMBER OF PROTONS IS WHAT DETERMINES WHAT ELEMENT IT IS

HYDROGEN H 11 MASS NUMBER

THE MASS NUMBER EQUALS THE NUMBER OF PROTONS PLUS THE NUMBER OF NEUTRONS SO # OF NEUTRONS = MASS # - ATOMIC #

ATOMS DO NOT HAVE AN OVERALL CHARGE SO THE NUMBER OF ELECTRONS… IS THE SAME AS THE NUMBER OF PROTONS (OR THE ATOMIC #)

HYDROGEN H 1 1 HOW MANY: PROTONS? 1 ELECTRONS?1 NEUTRONS?0

+ HYDROGEN -

LITHIUM Li 3 7 HOW MANY: PROTONS? 3 ELECTRONS?3 NEUTRONS?4

ARSENIC As HOW MANY: PROTONS? 33 NEUTRONS?42 ELECTRONS?33

Bromine Br HOW MANY: PROTONS? 35 ELECTRONS?35 NEUTRONS?45

INDIUM In HOW MANY : # NEGATIVE CHARGES ? 49 # NEUTRAL CHARGES? 66 WHAT ELSE ? # PROTONS 49

FLUORINE F 9 19 WHAT IS: ATOMIC # ? 9 MASS NUMBER? 19 # OF NEGATIVE CHARGES? 9