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- Having an atomic number greater than 92. 超铀的原子序数超过92的
- Availably atomic number 有效原子序数
- The atomic number appears as a subscript. 把原子系数标在左下角。
- Having an atomic number greater than92. 超铀的原子序数超过92的
- Atom number eight is called oxygen. 原子序数为8的物质叫做氧。
- A type of atom specified by its atomic number, atomic mass, and energy state, such as carbon 14. 核种由它的原子序数、原子量和能量状况具体确定的一种原子,如碳14。
- Semimetallic chemical element, chemical symbol B, atomic number 5. 半金属的化学元素,化学符号B,原子序数5。
- No change in atomic number is possible without a radical change in properties. 性质不发生根本的改变,原子序数的改变是不可能的。
- "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。
- The rare-earth elements with atomic numbers 57 through 71. 原子量为从57到71的稀土元素。
- The filter is constructed as a sandwich from three materials of different atomic number. 屏蔽物由不同原子序数的三种物质的夹层组成。
- 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。
- A type of atom specified by its atomic number,atomic mass,and energy state,such as carbon14. 核种由它的原子序数、原子量和能量状况具体确定的一种原子,如碳14
- History of each element, atomic number, symbol, electron configuration, isotopes, its properties and its cost. 提供每个元素的基本信息、同位素、价值和历史。
- 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。
- A type of atom specified by its atomic number, atomic mass, and energy state, such as carbon14. 核种由它的原子序数、原子量和能量状况具体确定的一种原子,如碳14。
- British physicist who determined that the atomic number of an element can be deduced from the element's x-ray spectrum. 莫斯利,亨利·格温·杰弗里斯1887-1915英国物理学家,提出一种元素的原子序数能够从这种元素的x光射线光谱中推断出来
- Lead (atomic number 82) and gold (atomic number 79) are defined as elements by the number of protons they possess. 铅(原子数82)和金(原子数79)都是根据所拥有的质子数定义的“元素”。
- "Potassium: Chemical element, one of the alkali metals, chemical symbol K, atomic number 19. 钾:一种碱金属化学元素,化学符号k,原子序数19。
- His eloquence did not avail against the facts. 他的雄辩在事实面前不起什么作用。