"aufbau principle" meaning in English

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      "expansion": "German Aufbau (“build-up, construction”)",
      "name": "bor"
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  "etymology_text": "From German Aufbau (“build-up, construction”).",
  "forms": [
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      "form": "the aufbau principle",
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  "lang_code": "en",
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      "glosses": [
        "The rule stating that, in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, followed by subshells of higher energy."
      ],
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        "(physics) The rule stating that, in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, followed by subshells of higher energy."
      ],
      "synonyms": [
        {
          "word": "aufbau rule"
        },
        {
          "word": "Aufbau principle"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
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  ],
  "word": "aufbau principle"
}

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  ],
  "etymology_text": "From German Aufbau (“build-up, construction”).",
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    {
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        "The rule stating that, in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, followed by subshells of higher energy."
      ],
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        "(physics) The rule stating that, in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, followed by subshells of higher energy."
      ],
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        {
          "word": "aufbau rule"
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  "word": "aufbau principle"
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