Phạm Ngọc Trang Anh Posts - TopicsExpress

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1. Khi một phi kim hay kim loại mang điện tích thì đc
1. Khi một phi kim hay kim loại mang điện tích thì đc gọi là gì? - Thế nào là cation và Anion 2. Phân biệt giữa liên kết io...

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