Chapter 2 Notes-Atoms, Molecules, and Life

Chapter 2 Notes-Atoms, Molecules, and Life - BIOL V01...

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Unformatted text preview: BIOL V01 Algiers Chapter 2 Notes (Atoms, Molecules, and Life) Atom-Fundamental ____________________ unit of ___________ Subatomic Particles- 1. proton 2. neutron 3. electron Periodic Table (pg 904) Element A substance that cannot be _________________ nor ______________ to another substance by ordinary ____________________________ Common elements in living organism (% by weight in humans- pg 22 Nitrogen _______________ % Carbon _______________ % Oxygen _______________ % Hydrogen _______________ % Examples: a) Oxygen O 8 protons Atomic # _______ 8 neutrons 8 electrons Atomic mass _______ b) Fill in the following: Element ____________ Atomic # ____________ Atomic mass ____________ Protons ____________ 1 11 Na 22.99 BIOL V01 Algiers Neutrons ____________ Electrons ____________ Isotope atoms of the same ______________ with different _________ numbers C12 ( ____ p ____ n) C14( ____ p ____ n) Some isotopes are ___________________ Spontaneously ____________________ & form ___________________ while releasing ________________ Read Scientific Inquiry: Radioactivity in Research (pg 24) Electrons Electrons orbit through diff. energy levels Rule for electron numbers in shells...
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This note was uploaded on 01/17/2012 for the course BIOL V01 taught by Professor Staff during the Fall '08 term at Ventura College.

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Chapter 2 Notes-Atoms, Molecules, and Life - BIOL V01...

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