25、由钠和氧元素组成的某种离子晶体中阴离子只有O2- 和O22-(过氧根离子)。在此晶体中氧元素和钠元素质量之比为48∶92,其中O2- 和O22-的物质的量之比为
A、1∶1 B、2∶1 C、1∶2 D、1∶3
专题训练一:基本理论--物质结构与周期律
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专题训练一:基本理论--物质结构与周期律
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专题训练一:基本理论--物质结构与周期律
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专题训练一:基本理论--物质结构与周期律
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专题训练一:基本理论--物质结构与周期律
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