原子是化学变化中的最小微粒.如图所示为某元素原子结构示意图该元素的原子核内有1515个质子该元素的符号是pp.——青夏教育精英家教�—— Template




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tomski原子是化学变化中的最小微粒.如图所示为某元素原子结构示意图该元素的原子核内有1515个质子该元素的符号是pp.——青夏教育精英家教�—— coloring