(08淄博市模拟)短周期元素的离子aW2+、bX+、cY2-、dZ-具有相同

(08淄博市模拟)短周期元素的离子aW2+bXcY2-dZ具有相同的电子层结构,下列推断正确的是(

A.原子半径:W>X>Z>Y             B.热稳定性:H2Y>HZ

C.离子半径:W2+>Y2-                 D.碱性:XOH>W(OH)2

答案

答案:D

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