How do you calculate a wavelength of light emitted when
theelcetron in doubly ionized lithium makes a transiton
frome12 to e8?

Wavelength of light emitted when  the electron in doubly ionized lithium makes a transition  from E12 to E8 is  

Explanation:

Using Rydberg's Equation for hydrogen and hydrogen like atom:

Where,

= Wavelength of radiation

= Rydberg's Constant

= Higher energy level  

= Lower energy level

We have:

The wavelength of the photon emitted when the hydrogen atom undergoes a transition is

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.