有幾個factor不會解釋 What factors are important in determining the following? (a)Carbon only give monocarbonates, but silcon gives a huge number of polymeric silicates. (b) The[Re2X8]^2- ions are in eclipsed conformations, but most of the [Os2X8]^2- ions in staggered conformation. (c) Oxygen forms no chains longer than three, but the allotropes of both sulfur & selenium are known in which helical chains are present. (d) The chemical reactivity increases in order of Ne<Ar<Kr<Xe (e) The chemical reactivity increases in order of Au<Ag<Cu a、b很簡單，一個是因為碳有pi鍵，一個是因為錸有delta鍵 c、d、e就不會解釋了 c可以說是因為陰電性的關係嗎？e可以說是因為還原電位的關係嗎？ 還有勞各位先進了.... --

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