1) The protons are in the a) nucleus b) electron cloud 2) The electrons are in the a) nucleus b) electron cloud 3) Elements are a) pure substances b) made up of more than one atom 4) Elements cannot be broken down into another substance a) true b) false 5) How many elements are on the periodic table? a) 18 b) 118 6) Atomic number = number of protons a) true b) false 7) Chemical symbol has one or two letters a) true b) false 8) Atomic weight = a) protons + neutrons b) protons + electrons 9) Chemical symbol has one or two numbers a) true b) false 10) Dogs know chemistry a) true b) false 11) These are on the periodic table a) atoms b) elements 12) Gold is an element a) true b) false 13) Copper is an element a) true b) false 14) Water is an element a) true b) false

Elements of the Periodic Table and atom review 2

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