I need help please and thank you

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

I’m an electrically neutral atomic any element, there are equal numbers of