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几道英语化学题!1.how are the atomic numbers and the atomic masses o
题目内容：
几道英语化学题!
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?
2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?
3.do some elements next to each other have the same number of neutrons?how is that possible?
4.how are the colors arranged,and what coclusions can be drawn from this arrangement?
thank!
几道英语化学题!
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?
2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?
3.do some elements next to each other have the same number of neutrons?how is that possible?
4.how are the colors arranged,and what coclusions can be drawn from this arrangement?
thank!
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?
2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?
3.do some elements next to each other have the same number of neutrons?how is that possible?
4.how are the colors arranged,and what coclusions can be drawn from this arrangement?
thank!
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