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ch.02

chemistry of life

QuestionAnswer
what is not a subatomic partical? isotope
electrons move about within certain limits called? orbitals
the number of protons in the nucleus is an atom's? atomic number
the number of protons and nuetrons combined is the atom's? atomic mass
is not one of the major elements present in the human body? A.oxygen B.carbon C.nitrogen D.iron iron
atoms usually unite with each other to form larger chemical units called? molecules
substances whose molecules have more than one element in them are called? compunds
Created by: 1810810739
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