1) a substance that can not be separated a) atom b) cake c) element d) atomic mass 2) the list of elements that have been discovered and named a) atomic number b) periodic table of elements c) school attendance d) symbol 3) isotopes a) # of neutrons b) atomic # c) cat d) electron shells 4) what is atomic mass a) # of protons b) # of grams of sugar c) a ball of slime d) atomic mass 5) what is the electron that is at the outermost part of an atom a) valance electron b) wall c) cell d) 45 6) what is a period a) the horizontal line b) the vertical line c) a stick d) big chungus 7) what are groups a) the vertical b) the 56 c) the bite of 87 d) the dog man book

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