Representative (main-group) elements
主族元素
Explanation (EN)
The A-series elements, whose number of valence electrons determines their chemical properties.
Explanation (ZH)
A 系元素,其价电子数决定化学性质。
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.