Show that the speed of light is constant over the electromagnetic spectrum Compare: a. X - r rays :?wavelength : 3 nm frequency : 1 * 10 ^ 17 * H * z radio waves: ?
wavelength : 50 m
frequency : 6 * 10 ^ 6 * H * z

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals