Principal quantum number (n)

主量子数 (n)

Explanation (EN)

The quantum number (1, 2, 3, ...) defining the size and energy of an orbital and identifying the shell.

Explanation (ZH)

量子数(1、2、3……),决定轨道的大小和能量并标识壳层。

About the IPA

The International Phonetic Alphabet is a standardized system of symbols used to represent the sounds of spoken language.

It helps linguists, language learners, and educators accurately describe pronunciation across languages.

Example: the word "hello" in British English is transcribed as /həˈləʊ/ in IPA.