12-09
12-09
Deserts are found where there is little rainfall or where
12-09
12-09
12-09
12-09
12-09
It was a cold winter day that Sunday
12-09
the necklace will cost you at least 650 yuan
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12-09
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ADADADADAD
原子,电子,元素符号
12-09
12-09
Deserts are found where there is little rainfall or where
12-09
12-09
12-09
12-09
12-09
It was a cold winter day that Sunday
12-09
the necklace will cost you at least 650 yuan
12-09
12-09
12-09
12-09
题目Ca、Al、C原子的电子式怎么写可圈可点用户2021-03-02 11:09优质解答答案解析电子式：在元素符号的周围用小黑点或x表示原子最外层电子的式子。
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题目
Ca、Al、C原子的电子式怎么写
可圈可点用户
2021-03-02 11:09
优质解答
电子式：在元素符号的周围用小黑点或x表示原子最外层电子的式子。
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