约 26 个结果
在新选项卡中打开链接
![](/rp/kFAqShRrnkQMbH6NYLBYoJ3lq9s.png)
Khan Academy
Learn about the discovery of the electron and nucleus in atomic structure.
Khan Academy
If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Khan Academy
The webpage explains Bohr's model of hydrogen atom in quantum physics.
Khan Academy
Khan Academy
Khan Academy
Notre mission : apporter un enseignement gratuit et de qualité à tout le monde, partout. Plus de 6 000 vidéos et des dizaines de milliers d'exercices interactifs sont disponibles du niveau primaire au niveau universitaire.