AP Chem periodic table

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Bellwork: 61 mi 5280 Pt 2hr UNIT2 - As Rows-periods 04 •= Luis dot diagram = 61mi 5280ft Ihr x 1 min Imi 60min 60s X 2hr 61×5280 Ft 2 hn PERIODIC TABLE metals - shiny, conductors of heal and electricity, malleable, lose electron. Form a lon [cation). solids at room temperature except gallium & mer- cury. protons nucleas neutrons electrons orbital Ex: Na 22.99 non metal- dull, non-conductors, not malleable, dain electrons, form ions (anion), all states at room temperature. -Metalloids- share properties of both, semi-condu- ctors. -B - Si - Sb - Ge -Te pt e- 11/11/12 23-11 =12 mass # = pt +n²= average atomic mass 322 Columns-groups Fe 55.95 3722/080 = 16 10 40 fph 60 = 2624 fps SYMBOL NOTATION A 164 8x102 Pb 22 pt en 26 26 120 56-26-30 z orbital Different forms of the same element •# of pt is always contact •# of e& nos can vary without changing identity. 160 Ex: 49.94701 (10x0.699243) 51.783624 (12×0,719217) 53.234 082 (73x72.9234) 54.702206 C24x73.42) 57.700264 (76x15.9214) + 266.367126 2nd →EE Isotopes - atoms of the same element having different masses due to varying amounts of neutrons. X A: mass number (pt tno) 2= atomic # (pt) x= element sy inbol jons-lost or gained electrons & has become + or - charged. negative ions = GAINS Tons & be comes negative рь 82 Clechons nucleas Cprotons(+) neutrons valence e- Ein outermast lever alkali metals = | alkali earth metals = 2 nalogens = 17 noble gases -18 transition metals = middle. t= atomic # Ex: lost 4/79. Now has 79 protons & 75 electrons. It is now AU 4t. positive rons = LOSES ions & becomes positive EX: 1C "CIC IN "N #pt when atom is neutral n° = mass# - pt. all isotopes Atomic...

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