Refresh the simulation, and then add 6 protons and 6 electrons to make a neutral carbon atom. click the plus sign on the mass number window. what's the mass number of this carbon atom?

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

i think the answer is composed of atoms