Chapter 02 v0804 Chemistry

Chapter 02 v0804 Chemistry - Chemistry ATOMS MATTER has...

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Chemistry
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ATOMS MATTER has mass (weight) and occupies space All matter is composed of ATOMS An ATOM is the smallest particle of matter A single atom can also be called an ELEMENT so: ATOM=ELEMENT An ELEMENT is something that cannot be broken down Atom with another Atom = MOLECULE
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ELEMENTS Contained in the PERIODIC Table
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Elements to Know and Love Most abundant elements in your body = Nitrogen, Oxygen, Hydrogen, Carbon ( NO H y C arbs) Hydrogen, symbol _______, Atomic # 1 Helium, symbol He, Atomic # ____ _______, symbol C, Atomic # 6 Oxygen, symbol O, Atomic # 8 Sodium, symbol ____, Atomic # _____ Chlorine, symbol Cl, Atomic # _____ Potassium, symbol ____, Atomic # 19
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ATOM ANATOMY NUCLEUS - center of the atom Two subatomic particles are contained in the nucleus: PROTONS and NEUTRONS ELECTRONS Subatomic particles whizzing around the nucleus
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Electron’s Distance from Nucleus PALM BEACH AIRPORT BCC Nucle US Homestead AFB 40 Miles 40 miles from BCC 40 miles from BCC
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SUBATOMIC CHARGES PRO TON - has a ‘positive’ (+) electronic charge (if you are ‘pro’ something you are ‘positive’ towards it) NEUTR ON - has a NO (neutr al) electronic charge ELECTRON - has a ‘negative’ (-) electronic charge (wet fingers on a live wire is a ‘negative’ experience)
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ATOMIC NUMBER of an element is number of PROTONS in it’s nucleus ATOMIC WEIGHT is the nucleus weight for example: 2 neutrons and 2 protons gives the atomic weight of 4 In neutral atoms: the number of neutrons
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This note was uploaded on 10/05/2011 for the course MCB 2010 taught by Professor Staff during the Spring '11 term at Broward College.

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Chapter 02 v0804 Chemistry - Chemistry ATOMS MATTER has...

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