Consultar las carscterisiticas y aplicaciones de los siguientes gases​

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

One similarity and one difference between an element and a mixture of elements