2InorganicChemistryPowerPoint

2InorganicChemistryPowerPoint - Le c ture 2 Inorganic...

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Le c ture  2 Inorganic Chemistry
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C he m ic a l Bas is  o f Life :  Ato m s , Mo le c ule s  & C o m po unds _________    Anything  tha t o c c upie s  s pa c e  a nd ha s   m a s s . _________→   S ubs tanc e s  that c a n’t b e  bro ke n do wn a ny  furthe r.  [ Living  thing s  a re  c o m po s e d o f 24 e le m e nts . Mo re  tha n 100 in the   pe rio dic  ta b le .]       Atom    The  s m a lle s t unit o f a n e le m e nt.      [a to m s  = pro to ns  (+) a nd ne utro ns  in the  nuc le us  o rb ite d b y e le c tro ns  (-)] __________    Ato m s  c he m ic a lly b o nde d with o the r  a to m s . __________    Mo le c ule s  c o m po s e d o f two  o r m o re   diffe re nt kinds  o f a to m s . CHEMISTRY OF LIFE
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Reminder …Molecule vs. Compound __________ = two or more atoms join together chemically.  __________ = molecule containing  at least two different elements All compounds are molecules but not all molecules are compounds. Examples of molecules:  Wa te r  (H 2 O ),  c a rb o n dio xide   (C O 2 )  and methane  (CH 4 AND   Mo le c ular hydro g e n  2 ),  molecular oxygen  (O 2 )  and molecular nitrogen (N 2 )…Not  compounds because each is composed of a single element.  Examples of compounds:  O nly m o le c ule  c o nta ining  two  o r m o re   e le m e nts , s uc h as  wa te r  2 O),  carbon dioxide  (CO 2 )  and methane  (CH 4 ).   Methane is the simplest organic compound.
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Chemical Shorthand Chemical __________ - Be g ins  with  one or two letters  b a s e d o n e le m e nts  na m e . - Wha t if the re  is  m o re  tha n o ne  e le m e nt tha t s tarts  with the  s a m e  le tte r? The  m o s t c o m m o n e le m e nt is  g ive n s ym b o l o f a  s ing le  c a pita lize d le tte r.  - Example: Carbon (C), Calcium (Ca), Chlorine (Cl) Chemical _________ - “Shorthand” for a compound. - Contains chemical symbols of the elements that make up compound. - Numerical subscripts represent number of atoms of each element in molecule. Example:  H 2 0  = water; has two hydrogen atoms and one oxygen. - More than one molecule of same type…the group of letters is preceded by number.  Example  2H 2 = two water molecules. CHEMISTRY OF LIFE 10:45
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The Structure of an Atom Atoms are the basis for everything in the universe.  Three basic parts:  _________ = " -" ne g a tive  c ha rg e  _________ = " +" po s itive  c ha rg e  _________ = ne utra l (a  c ha rg e  o f ze ro ) The  thing  tha t m a ke s  e a c h e le m e nt diffe re nt  = # e le c tro ns , pro to ns   &ne utro ns .  Protons  a nd  neutrons  a lwa ys  in the  c e nte r o f a to m  (the  nuc le us ).  The   electrons a re  fo und whizzing  a ro und nuc le us  in a re a s  c a lle d  o rb ita ls . 
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This note was uploaded on 11/13/2011 for the course BIO 100 taught by Professor Robinson during the Winter '08 term at BYU.

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2InorganicChemistryPowerPoint - Le c ture 2 Inorganic...

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