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periodic law

/ˌpɪəriˈɒdɪk lɔː/

翻译: 化学中的基本原理,指出化学元素的性质是其原子序数的周期函数,即按原子序数递增排列时,性质相似的元素会以规律的间隔重复出现。

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phrase

/ˌpɪəriˈɒdɪk lɔː/C1formalscientific
  • zh化学中的基本原理,指出化学元素的性质是其原子序数的周期函数,即按原子序数递增排列时,性质相似的元素会以规律的间隔重复出现。

A fundamental principle in chemistry stating that the properties of chemical elements are a periodic function of their atomic numbers, meaning elements with similar properties recur at regular intervals when arranged by increasing atomic number.

  1. Periodic LawC1formal

    A fundamental principle in chemistry stating that the properties of elements are periodic functions of their atomic numbers.

    zh周期律

    • The periodic law explains why elements in the same group have similar chemical properties.
    • Mendeleev's formulation of the periodic law allowed him to predict undiscovered elements.
    • The modern periodic law is based on atomic number rather than atomic mass.