What determines the chemical properties of an element? A. the number and arrangement of the electrons in an atom B. the number o
f neutrons and protons in an element C. the arrangement of all the neutrons, protons, and electrons D. the atomic mass of an atom
2 answers:
<span>The sum of the protons and neutrons in an atom equals the mass number. </span>
the answer would be A. the number and arrangement of the electrons in an atom
ik bc i took the test
:)
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