题目内容

晶格能是指气态阳离子与气态阴离子生成1 mol离子晶体所释放的能量。

A. 对
B. 错

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通常用离子性百分数来表示离子键的离子性和共价性的相对大小。离子键的成份取决于元素的电负性差值,差值大,离子性越大。

A. 对
B. 错

根据离子晶体的半径比规则,当r+/r->0.414时,正离子周围能容纳更多的负离子,晶体将向配位数为 8 的 CsCl 型转变。

A. 对
B. 错

Directions: Please read the speech carefully and list examples of metaphor and rhetorical structures in the speech and comment on their persuasive force.(25.0分)

Directions: Please read the speech carefully and pick out all the phrases and sentences that show the DG's stance from the perspective of interpersonal communication.

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