Carbon occupies the sixth place in the periodic table of chemical elements.
碳在化学元素周期表中排第六位。
The discovery of Kepler three laws and the periodic table of chemical elements as well as the establishment of the quantum theory of hydrogen atom are typical examples.
开普勒三大定律和元素周期表的发现和氢原子量子理论的建立无不如此。
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。
In recent years, there have been several claims by laboratories for the discovery of new chemical elements at positions 113, 114, 115, 116 and 118 on the periodic table.
最近几年，有几个实验室声称自己在元素周期表的113,114,115,116和118位置上发现了新的元素。
Before the formation of the sun and planets, all the chemical elements found on the periodic table were floating around in the primordial dust of the Solar System.
在太阳和行星形成之前，所有元素周期表上的化学元素在太阳系的原始尘埃中四处漂浮着。
Periodic table (1869) : Organized array of all the chemical elements in approximately increasing order of their atomic weight.
周期表(1869)：所有的化学元素按它们的原子量逐渐增加的顺序有组织地排列。
Lanthanide: Any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 57-71).
镧系：周期表中从镧到镏（原子序数57～71）15种按顺序排列的化学元素系列。
Noble gas (or inert gas) : Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.
稀有气体(亦称惰性气体)：通常排列在周期律中最右边一族的六种化学元素：氦、氖、氩、氪、氙和氡。
Transuranium element Any of the chemical elements after uranium in the periodic table (with atomic Numbers greater than 92).
周期表中铀以后的任何化学元素(原子序数大于92)。
Transuranium element Any of the chemical elements after uranium in the periodic table (with atomic Numbers greater than 92).
周期表中铀以后的任何化学元素(原子序数大于92)。
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