This website uses cookies to analyze user experience and ads effectiveness.
We use Google Analytics and Yandex.Metrica to collect anonymous information only if you allow us to do so by clicking "I understand" button.

He - 氦

下載化學應用程式以查看有關化學元素的更多信息:

原子序數2
VIIIA
元素周期1
質量4.002602
拉丁名Helium
電子組態1s2
氧化態0