What do many bases have in common

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Name the element in group 17, period 2. (periodic table)

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?