Elements - 6 2 Row/ Shell # C 12.01 Atomic Number (protons,...

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2 6 C 12 . 01 Atomic Number (protons, electrons) Mass Number (neutrons= mass#- atomic #) - - - - - - - - + + + + - + + - - + + - + - + + + + - - - - - + - + - + - + - - + - - + - - + - + - Row/ Shell # - All elements tend to prefer a complete (or empty) outer shell (valence shell) of electrons Isotopes- different variations of elements Ion- Electrically charged thing made when an atom loser or gains one or more electrons o Losing a electron makes a positive ion o Gaining a electron makes a negative ion Anon- Negatively charged ion Cation- Positively charged ion, contains less electrons than protons - All elements like a complete or empty outer shell of electrons Polyatomic Ion- two or more atoms bonded together with a non zero net charge Ionic Bond- between metal and non metal Covalent Bond- between two non metals sharing electrons - Ionic Compound ex.- NaCl - Its composed of 1 Na atom and 1 Cl atom, the net charge is zero ex: Li = Li1+ O = O2- e ee ee 3p 8p 3n 3n ee ee ee = Li2O Positive Ion
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This note was uploaded on 04/07/2008 for the course PHS 100 taught by Professor All during the Fall '06 term at Anne Arundel CC.

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Elements - 6 2 Row/ Shell # C 12.01 Atomic Number (protons,...

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