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Ch. 4-5 Chem

QuestionAnswer
Atoms of the same element that contain the same number of protons but different numbers of neutrons isotope
The number of protons in an atom atomic number
A substance that is made up entirely of one type of atom element
The total number of protons and neutrons in an atom mass number
what is the top number of an element in the periodic table? atomic number
what is the bottom number of an element in the periodic table? atomic mass
electron configuration order 1s 2s 2p 3s 3p 4s 3d 4p
Created by: i.lundin
 

 



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