Atom number eight is called oxygen.
原子序数为8的物质叫做氧.
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.
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.
The electron range increases with decreasing atomic number and increasing incident beam energy E 0.
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.
R is a reference referring to effective atomic number directly.
R是与有效原子序数直接相关的量.
Hydrogen: Lightest chemical element, chemical symbol H, atomic number 1.
氢: 一种轻的化学元素, 化学符号H, 原子序数1.
Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
氮: 气态化学元素, 化学符号N, 原子序数7.
Lead: Metallic chemical element, chemical symbol PB, atomic number 82.
铅: 金属化学元素, 化学符号PB, 原子序数82.
Mercury ( quicksilver ): Metallic chemical element, chemical symbol Hg, atomic number 80.
汞 ( 亦称水银 ): 金属化学元素, 化学符号Hg, 原子序数80.
Sulfur: Nonmetallic chemical element, chemical symbol S, atomic number 16.
硫: 非金属化学元素, 化学符号S, 原子序数16.
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.
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.
Nickel Metallic chemical element, one of the transition elements, chemical symbol Ni, atomic number 28.
金属化学元素, 过渡元素之一, 化学符号ni, 原子序数28.
Iridium: Metallic chemical element, one of the transition elements, chemical symbol Ir, atomic number 77.
铱: 金属化学元素, 为过渡元素的一种, 化学符号Ir, 原子序数77.
Strontium Chemical element, one of the alkaline earth metals, chemical symbol Sr, atomic number 38.
化学元素,碱土金属之一, 化学符号sr, 原子序数38.