If an atom contains 60 protons, 60 electrons, and 89 neutrons. what is the mass number of the atom? * 1 point 219 149 120

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

What conclusion can you draw from this experiment about the components of the black ink?

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.