Isoelectronic series

等电子系列

Explanation (EN)

A set of ions having the same number of electrons (e.g. O²⁻, F⁻, Na⁺); ionic size is then determined by nuclear charge.

Explanation (ZH)

电子数相同的一组离子(如 O²⁻、F⁻、Na⁺);此时离子大小由核电荷决定。

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.