複選題

7. 下列哪些為放熱過程?
(A) C (diamond)→C (graphite)
(B) F (g) + Cl(g)→F(g) + Cl(g)
(C) Cu:[Ar]3d94s2→Cu:[Ar]3d104s1
(D) O:1s22s22px12py12pz2 → O:1s22s22px22pz2
(E) Na+ (g) + K(g)→Na(g) + K+ (g)

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