What do you think the engineering process is

What are the first three quantum numbers for the electrons located in subshell 2s?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

What is the chemical name of the compound ti2o3?