14．有a1和a2两种元素已知a2原子中l层电子数是m层电子数的而a1原子中m层电子数是a2原子m层电子数的则a1与a2分别是 A Sketch Coloring Page

14．有a1和a2两种元素已知a2原子中l层电子数是m层电子数的而a1原子中m层电子数是a2原子m层电子数的则a1与a2分别是 A Template

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tomski14．有a1和a2两种元素已知a2原子中l层电子数是m层电子数的而a1原子中m层电子数是a2原子m层电子数的则a1与a2分别是 a coloring

14．有A1和A2两种元素已知A2原子中L层电子数是M层电子数的而A1原子中M层电子数是A2原子M层电子数的则A1与A2分别是 A sketch template

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已知ABCDEF六种元素原子序数依次增大．A原子核外有两种形状的电子�两种形状的电子�轨道上电子相等B是短�期中原子半径最大 sketch template

$16．已知银有两种天然同位素${} {47}^{107}$Ag和${} {47}^{109}$Ag银元素的�似相对原子质量是107 sketch template$

14．已知某种燃料含有碳氢氧3种元素为了测定这种燃料中碳和氢两种元素的质量比可将气态燃料放入足量的 氧气中燃烧并使产生的气体全部通 sketch template

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