.Americium- 241 is widely used in smoke detectors. The radiation released by this element ionizes particles that are then detected by a charged particle collector. The half-life of Am-241 is 432.2 years, and it decays by emitting alpha particles. How many alpha particles are emitted each second by a 5.00 g sample of Am-241?

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?