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宇宙,在每个人的心目里都刻上属于自己的信念、图象和憧憬。你听,各有各的理!物理学家说:宇宙间万事万物皆由为数有限的一百多种元素组成。从作为万物精灵的人类到震惊世界的云南澄江化石群;从南北两极的冰天雪地到神秘莫测的火星陨石,哪个能例外?他们坚信:了解了元素也就洞察了一切的奥秘。原子是它们的基本单位。而原子的中心都有各自固定数量的质子和数量变化的中子(因此就有了所谓的同位素之说),外面包围着电子。目前的基本粒子模型则认为:一切之中的一切不过是轻子(6种)和夸克(也是6种)组合而成的万花
The universe, in everyone's mind are engraved with their own beliefs, images and longings. You listen, each has its own reason! Physicists say that everything in the universe consists of a hundred or so finite elements. From the human being as an all-enigmatic creature to the fossilized chert of Chengjiang in Yunnan Province that shocked the world; from the ice and snow in the northern and southern polar regions to the mysterious Martian meteorites, which one can be excepted? They firmly believe that knowing the elements also gives insight into all mysteries. Atoms are their basic unit. The center of the atom has its own fixed number of protons and a varying number of neutrons (hence the so-called isotopes), surrounded by electrons. The current basic particle model holds that everything in between is nothing but a combination of lean (six species) and quark (six species)