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第一阶段:引入。教师:漂亮的彩虹、精彩的烟火,科学家通过探索原子的结构问题揭示了五颜六色的色彩秘密。正是因为电子在运动过程中有能量的变化,我们才看到了这些绚丽的色彩。在电子运动过程中产生的这些光线,我们称之为光谱。我们在学习中还知道很多金属元素在火焰上灼烧时,会显示出具有它们特征的焰色。为什么每一种金属会显示出各自不同的焰色呢?除了金属以外,其他元素是否也能产生类似的光谱呢?今天,我们就从最简单的元素——氢
The first stage: the introduction. Teachers: beautiful rainbow, wonderful fireworks, scientists reveal the colorful color secrets by exploring the structural problems of the atoms. It is because of the changes in the energy of electrons during the movement, we have seen these brilliant colors. These rays, which are produced during the movement of electrons, are called spectra. We also learned in the study that many metallic elements will show their characteristic flame color when burned in the flame. Why each metal will show their own different colors? In addition to metal, other elements can also produce a similar spectrum? Today, we start from the simplest elements - hydrogen