Which sequence of atomic numbers represents elements which have similar chemical properties

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

Determine the reaction and balance the following equations urgent due in the morning

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