the element boron has two stable isotopes: boron-10 (10.0129 u) and boron-11 (11.0093 u). the periodic table reports a mass for boron as 10.811 u. what is the natural abundance of each boron isotope?

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.