比较Mg2+ 和Mg两种粒子，下列说法不正确的是
侯英超 |
发布日期：2010-06-30 05:06:52
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比较Mg2+ 和Mg两种粒子，下列说法不正确的是……………………………………（ ） A．它们属于同种元素 B．它们都是构成物质的基本粒子 C．它们的化学性质相同 D．它们的质子数相同 |
