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Physical Science Chapter 4: Atoms and the Periodic Table 4.1-----------------------------------------------------------------------------------------------------------------------------Understand Dalton’s Atomic Theory and list the 3 major details 1. _____________________________________________________________________________________ 2. _____________________________________________________________________________________ 3. _____________________________________________________________________________________ Name the dense central region of the atom ______________________________ Describe the 3 subatomic particles in terms of location and charge 1. Proton Location:_______________________________Proton Charge:____________________________ 2. Neutron Location:______________________________Neutron Charge:__________________________ 3. Electron Location:______________________________Electron Charge:__________________________ Use the periodic table to describe atom types in terms of #’s of protons and e-s Ar has __________________ protons and _____________________electrons Understand the Bohr model of the atom and what the symbols represent The Bohr circles represent _________________________________________________________________ The Bohr dots represent ___________________________________________________________________ Define Valence electrons__________________________________________________________________ Draw a Bohr model of one of the first 18 elements and identify the valence electrons 4.2-----------------------------------------------------------------------------------------------------------------------------The elements are arranged on the periodic table according to their numbers of __________________. Chemical families have similar ___________characteristics because they have the same ______________. Define ion______________________________________________________________________________ Atoms become ions by ____________________________________________________________________ Define isotope __________________________________________________________________________ Atomic number _________________________________________________________________________ Mass number ___________________________________________________________________________ Describe C-14 atoms in terms of subatomic particles: # protons_______ #e-________ # neutrons_______ 4.3--------------------------------------------------------------------------------------------------------------------------Use the periodic table sketch below to label the 4 chemical families discussed in class Label where the metals, transition metals, and the non-metals are located on the periodic table Across the period, as the number of valence electrons (increases/decreases), reactivity (increases/decreases). 4.4---------------------------------------------------------------------------------------------------------------------------Tell what a mole describes and how Avogadro’s number is related to a mole Define molar mass and know how to find it on the periodic table Use unit analysis to convert from moles to grams and from grams to moles Practice Test Questions: Page 136 # 1, 2, 3,4, 5, 6, 9, 10, 11, 12, 13, 15, 16, 17a,b, 18, 20, 21, 22, 23, 25, 26, 27, 28, 30, 34, 35, 36, 37, 38, 46