下列说法正确的是A.第ⅠA族元素的金属性比第ⅡA族元素的金属性强

下列说法正确的是

A.第ⅠA族元素的金属性比第ⅡA族元素的金属性强

B.元素周期表中从ⅢB族到ⅡB族10个纵行的元素都是金属元素

C.同周期非金属氧化物对应水化物的酸性从左到右依次增强

D.第三周期元素的离子半径从左到右逐渐减小

 

答案

B

解析:

 

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