三,元素周期表 三,元素周期表(periodic Table of the Elements) 元素( ):具有相同核电荷的同一类原子总称 元素(Element):具有相同核电荷的同一类原子总称,共116种,核电荷数是 ):具有相同核电荷...
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In 1869, Dmitri Ivanovich Mendeleev, a Russianchemist, published his periodic table of the elements.
俄国化学家门捷列夫在1869年公布了他的元素周期表。
One way is by using the periodic table of the elements. The periodic table neatly tabulates information about atoms.
方法之一是使用元素周期表。元素周期表把原子的信息整齐地列表。
Arsenic sits right beneath phosphorus in the periodic table of the elements and shares many of its chemical properties.
在元素周期表中,砷就位于磷的下面,二者具有很多相同的化学性质。
People who remember the periodic table of the elements from chemistry class might recognize them.
VOA: special.2010.10.08
You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now.
在测试中你们可以使用,化学元素周期表的官方版本,你们应该大部分都有了吧。
And there's a lot we can explain by talking about what we see in the periodic table in terms of what different trends are in grouping different elements in different spots within the periodic table.
我们可以解释很多,通过讨论元素,周期表中的内容,按照各种不同的规律,将周期表中不同位置的元素分组归类。
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