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chemical element造句
(31) Ion beam can be defined as the radiation which was the product of accelerated ions of chemical element by high-energy ion accelerator. (32) What Robert Boyle (1627-1691) gave in his Sceptical Chymist (1661) is not, as is commonly said, a modern definition of a chemical element, but a traditional definition of a chemical element. (33) Constituting of earth crust can from the chemical element, mineral, rock three aspects to explain. (34) Beryllium : Chemical element , lightest of the alkaline earth metals, chemical symbol Be, atomic number 4. (35) Silver: Metallic chemical element, one of the transition elements, chemical symbol Ag, atomic number 47. (36) Lead: Metallic chemical element, chemical symbol PB, atomic number 82. Lead is a soft, silvery white or grayish, malleable, ductile, dense metal that conducts electricity poorly. (37) Mercury ( quicksilver ): Metallic chemical element, chemical symbol Hg, atomic number 80. (38) Potassium: Chemical element , one of the alkali metals, chemical symbol K, atomic number 19. (39) Iodine: Nonmetallic chemical element, chemical symbol I, atomic number 53. (40) Lead: Metallic chemical element, chemical symbol PB, atomic number 82. (41) Newton was a serious alchemist, who spent night upon dawn for three decades of his life slaving over a stygian furnace in search of the power to transmute one chemical element into another. (42) Phosphorus Nonmetallic chemical element, chemical symbol P, atomic number 15. (43) Zirconium: Metallic chemical element, one of the transition elements, chemical symbol Zr, atomic number 40.