Chapter 7 Atomic Structure and Periodicity. 7.1-7.2 7.3-7.4 7.5-7.8 7.9-7.11 7.13. Properties of Light. Electromagnetic radiation- the way energy travels through space. This energy travels at the speed of light. Waves. Three characteristics: 1.Wavelength 2.Frequency 3. Speed
Energy Atom = E photon = E e-final- E e-initial
E = -2.178 x 10 Hydrogen Atom-18(Z2/n2)
Z= nuclear charge
n = the size of the radius (the larger the value of n, the larger the orbit radius)
(-) sign means: energy of the electron bound to the nucleus is lower than if electron were at infinity.
At infinite distance, no interaction occurs and the energy is zero.Bohr model cont’d