英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth en

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英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth en
英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus
11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth energy levels?

英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth en
原子序数15的磷31原子中,质子数和中子数是多少?并确定核外电子分布中,第一、第二、第三和第四能量层上各有多少个电子?

在一个磷31原子中有多少中子与质子,原子序数15的原子,在第一、二、三、四能级各有多少电子? 答案同上

磷（31 15 P）中有多少质子和中子？测定一下第一、第二、第三和第四能级中应该有多少电子？

多少个中子和亲吨的磷原子是31，原子序数15，并确定有多少电子应在第一，第二，第三和第四能级？

英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth en how often,how many,how much,how long,how soon的区别各位懂英语的朋友帮帮忙,明天就检查呀! 英语中how much 和 how many How many?的中文. how many的中文 英语牛×的进来,How many stamps______you_______(collect)so far? 在英语中对薯条的提问用how many 还是how much how many和many的意思 How many,how ofen,how much,how long的区别 how much与how many的区别 how much和how many的区别 how.much和how.many的区别 how many times和how many time的区别 how many is和how many are的区别 how many的中文是什么意思? how many kilos的意思 how many的同义词是什么 How many minutes?的意思