Idunno which one it is could someone ?

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?

1) this is the structure in the cell nucleus that houses a cell's genetic information

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen