9 protons 10 neutrons 9 electrons

neutron

neutron

核素的基本概念及举例

核素的基本概念及举例

igcse化学的零零总总各种构成

igcse化学的零零总总各种构成

a basic diagram of an atom, with protons, neutrons and electrons

a basic diagram of an atom, with protons, neutrons and electrons

怎样画好原子结构示意图_弧线_电子层_质子

怎样画好原子结构示意图_弧线_电子层_质子

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