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【单选题】
短周期金属元素甲~戊在周期表中的相对位置如右表所示，下面判断不正确的是( ) 甲 乙 丙 丁 戊A.
原子半径：丙>丁>戊
B.
金属性：甲＜丙
C.
最外层电子数：甲＞乙
D.
氢氧化物碱性：丙＞丁＞戊
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