A.r(K⁺)/r(K)            B.r(Al)/r(Mg)             C.r(P)/r(S)              D.r(Cl)/r(Cl^-)

下列微粒半徑之比大于1的是

1. A.
   r(K⁺)/r(K)
2. B.
   r(Al)/r(Mg)
3. C.
   r(P)/r(S)
4. D.
   r(Cl)/r(Cl^-)

下列微粒半徑之比大于1的是 

       A．r(K^＋)/r(K)           B．r(Ca)/r(Mg)       C．r(P)/r(S)             D．r(Cl)/r(Cl^－) 

下列微粒半徑之比大于1的是(    )                                                                      

A、r(K⁺)/r(K)            B、r(Cl)/r(Cl^－)             C、r(F)/r(S)          D、r(Ca)/r(Mg)