The chemical properties of a molecule is determined by the wavefunctions of its
(A) electrons.
(B) electrons and atomic nuclei.
(C) atomic nuclei.
(D) protons.
Questions
--- 
What this question is about
The chemical properties of a molecule is determined by the wavefunctions of its
(A) electrons. ---
Yes.
Chemical reactions only involve electrons.
Questions
--- What this question is about
The chemical properties of a molecule is determined by the wavefunctions of its
(B) electrons and atomic nuclei.
No.
Nuclear wavefunctions are not needed.
Questions
--- What this question is about
The chemical properties of a molecule is determined by the wavefunctions of its
(C) atomic nuclei.
No.
Nuclear wavefunctions are not needed.
Questions
--- What this question is about
The chemical properties of a molecule is determined by the wavefunctions of its
(D) protons.
No. --- with the possible
exception of Hydrogen.
Questions
--- What this question is about