1. Complete following table for regions of the visible region of the electromagnetic spectrum: Visible Region Wavelength Visible Region Wavelength Range (nm) Range (nm) purple/violet yellow blue orange green red

7. What is an approximate frequency (in MHz) range of ultraviolet light? Note: The range of ultraviolet light is approximately 1 x 10¹5-1 x 10¹7 Hz. A: 10⁹ - 10¹1

What quantum numbers specify these subshells? n = n = n = 5s 5p 3d l = l = l =

These elements emit light of a very specific wavelength when they are heated in an intense flame.  Consider these elements along with their respective characteristic wavelength light (written to the right of the elemental symbol) that they emit when in that intense flame.  Which element emits photons of the highest energy? Ag   328.1 nm Au  267.6 nm Ba  455.4 nm Ca  422.7 nm Cu 324.8 nm Fe  372.0 nm

Which color of the visible spectrum has the longest wavelength (750 nm)? violet yellow green orange O red

Which electronic transition in the hydrogen atom would release a photon with the shortest wavelength? Select one: n=4 → n=2 n=5 → n=2 n=4 → n=3 n=6 → n=5 n=6 → n=3

from highest to lowest

12. What causes some parts of the electromagnetic spectrum to be harmful to humans? short wavelength O high speed high energy high frequency

When electrons move from one electronic energy level to another, a specific amount of energy is either absorbed or emitted, depending on the direction of the transition. Calculate the wavelength of the photons emitted by hydrogen atoms when they undergo transitions from n = 4 to n = 3.   In which region of the electromagnetic spectrum does this radiation occur? visible,  X-ray,  ultraviolet, or  infrared

Which type of electromagnetic radiation has the shortest wavelength? Ultra violet X rays Microwaves Radio waves