英语释义

• the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element

片语

low-atomic-number低原子序数的

even atomic number偶数原子序数

material low-atomic-number低原子序物质

atomic ma number原子质量数

atomic c number原子序数

atomic number contrast原子序数衬度

atomic mass number[物] 原子质量数

low-atomic-number material低原子序数材料

atomic colouring number原子的染色序数

英汉例句

• it is on the periodic table of elements under the symbol bi at atomic number 83.

  在元素周期表里序列号是83，标志是bi。

• so, even though we don「t have the lithium anymore, we still keep that atomic number 7 around.

  尽管现在它不含锂了，但是作为原子量的七，还是在一定程度上保留了下来。

• no change in atomic number is possible without a radical change in properties.

  性子不发作基本的改动，原子序数的改动是不行能的。

• compared with iodine, gold has a larger atomic number and x-ray absorption coefficient.

  金与碘相比，有着更高的原子序数和x射线吸收系数。

• r is a reference referring to effective atomic number directly.

  是与有效原子序数直接相关的量。

• they have the same atomic number and hence nearly identical chemical behaviour but different atomic masses.

  它们有相同的原子序数，因此化学行为几乎完全一样，但原子量不同。

• an element」s atomic number is the number of protons in its nucleus.

  一种元素的原子序数是其原子核中的质子数。

• iodine: nonmetallic chemical element, chemical symbol i, atomic number 53.

  碘：非金属化学元素，化学符号i，原子序数53。

• with six protons and six neutrons, carbon normally has an atomic number of 12.

  具备6个质子和6个中子，碳原子数通常为12。

• so, let「s say we have an atomic number of 3, 3 that means we have 3 electrons, so we better hope to get our neutral atom that we have a charge of plus 3in the nucleus.

  这也是很合理的，因为z就是原子序数，假设原子序数是，那就有3个电子，那我们就希望,性原子有个带3个正电荷的原子核。

• potassium: chemical element, one of the alkali metals, chemical symbol k, atomic number 19.

  钾：一种堿金属化学元素，化学符号k，原子序数19。

• the results show that with the atomic number of i cluster elements increasing from the top down, they are easier to form complex salts with calcium sulfate, however, the rules is not obvious.

  结果表明，i簇元素从上到下随原子序数增加，与硫酸钙形成复盐的难度逐渐降低，但规律性不明显。

• boron: semimetallic chemical element, chemical symbol b, atomic number 5.

  硼：半金属的化学元素，化学符号b，原子序数5。

• clever periodic rings from itsnoname are available in silver, gold, and platinum. each features the corresponding metal」s atomic number and weight.

  itsnoname出产的精明的元素表戒指，有银的金的和拜金的。每个都标记了金属的序号和重量。

• this is because even though z, the atomic number is still increasing, we are also getting further away from the nucleus.

  从有效核电量方面来想一想为什么，这是因为，尽管，z，原子序数依然在变大，但我们同时也在离原子核越来越远。

• but for anything 7 or less, so what is the atomic number for nitrogen?

  但对于7或者更少，对于n原子序数是多少？

• professor: five -- there「s five valence electrons, but the atomic number is actually seven.

  教授：5，有5个价电子，但原子序数是7。

• the electron range increases with decreasing atomic number and increasing incident beam energy e0.

  电子射程随着原子序数的减少和入射束能量e0的增加而增加。

• so similarly, as we now move up only one more atom in the table, 3 so to an atomic number of three or lithium, now we」re going from six variables all the way to nine variables.

  类似地就像我们现在,移动到周期表中仅仅多一个电子的情况，移动到一个原子数为，或者锂元素,现在我们从6个变量到了9个变量。

• conclusion the effective average atomic number of energy spectrum ct can precisely determine the chemical composition of calculus.

  结论能谱ct测定结石平均有效原子序数可以较準确判定结石化学成分。

• the electrode is made of high atomic number metal.

  电离室电极用高原子序数的金属制造。