6. Салыстырып 3 ц 50 кг
9 * 90 кг
910 кг 9 ц1 кг
* 350
19 мм 2 см
* 4 дм 7 см
15 см = 150 мм
47 см
3​

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!