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- Atom number eight is called oxygen. 原子序数为8的物质叫做氧。
- Having an atomic number greater than 92. 超铀的原子序数超过92的
- 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。
- 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
- 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。
- 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
- 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。
- 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 atom bomb is of catholic concern. 原子弹受到普遍的关注。
- 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。
- That cannot get up an atom of sympathy for them. 那并不能激发起人们对他们的丝毫同情。
- Any of two or more kinds of atoms having the same atomic mass but different atomic numbers. 同量异位素两种或各多种有相同原子质量但却有不同的原子序数的原子中的任一种
- Scientists have unlocked the secret of the atom. 科学家已经揭开了原子的秘密。
- 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。
- The particles in an atom are infinitely small. 原子里的粒子极小。