化学示例

$F r$

解题步骤 1

$F r$ is insoluble because Fluorides are frequently insoluble. Examples: $B a F_{2}$ , $M g F_{2}$ , and $P b F_{2}$ .

$F r$ 不可溶

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$