题目内容
Which of the following cation can replace the silicon ion in the silicon-oxygen tetrahedron?
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The electric double layer of soil colloid includes potential-determining ion layer and ______ .
In cation exchange, the higher the cation valence, the higher the exchange ability. Therefore, the mono-valent cations in solution cannot exchange with the bivalent or trivalent cations on the colloid surface in any cases.
The crystal structure will be destroyed when the isomorphous substitution occurs.
The external surface area of phyllosilicate clay minerals is definitely larger than its internal surface area.
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