Ahydrogen atom initially in the n 3 level emits a photon and ends up in the ground state. (a) what is the energy of the emitted photon?

it becomes positively charged by charging it

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.