1) What is it called when two or more elements that have combined to create a new pure substance with new properties? a) compound b) nucleus c) atom d) mixture of elements 2) is burning physical or chemical? a) chemical b) physical 3) how many protons does aluinum have a) 26.982 b) 27 c) 2 d) 13 4) What is a indicator that a chemical reaction has occured a) smells different b) looks dfferent c) atoms change forms d) compounds break e) things will become radiated f) feels different 5) what do we call the center of an atom where the protons and neutrons are found? a) nucleus b) proton c) molecule d) electron e) nucIeus. f) neutron 6) what do we call the smallest part of a compound a) molecule b) proton c) atom d) product 7) does boiling begin at the bottom or top first? a) bottom b) maybe c) top 8) what is found on the periodic table a) atoms b) elements c) compounds 9) red part with the plus sign a) p.roton b) pr0ton c) pRoton d) proTon e) Proton f) prolon 10) what has all the same types of atoms a) both b) elements c) compound
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