Your cell phone should be away during all times today unless you are viewing the website.
Learning Intentions
You can understand energy and Plank's constant and use the equation E=hv to solve for energy and frequency.
You can describe the light emitted from excited electrons is used to explore electronic structure of an atom.
You can ask questions about problems you do not understand.
You will read an article to describe other ways that electrons can be excited and express your own ideas about facts from an article on electron excitation.
Content Standards being covered:
Student understand the quantum mechanical atomic model that describes the structure of an atom and changes that can occur to that structure.
62. Max Planck developed the idea of “quanta” - a discrete unit of Energy related to frequency
68. Elements, when excited with enough energy, will emit their own atomic emission spectrum, a unique set of frequencies on the electromagnetic spectrum due to the transition of electrons from a higher to a lower energy state
69. The electromagnetic spectrum is the broad range of frequencies emitted through electromagnetic radiation
70. Electromagnetic radiation moves through space in waves
71. One complete wavelength is measured from crest to crest or trough to trough, is symbolized by the Greek symbol lambda λ, and is measured in meters (m)
72. The frequency of a wave is how many complete wave occur per second, is symbolized by ѵ, and is measured in Hertz (Hz= 1/seconds= seconds-1)
73. The speed of light, c, is equal to 3.0 X 108 m/s
74. As wavelength (λ) increases, the frequency (ѵ) of the wave decreases and therefore relate to one another using the equation c= λѵ
75. The frequency of the visible light spectrum increases from ROYGBI to V (red, orange, yellow, green, blue, indigo, and violet)
77. The frequency of the electron can be related to the Energy of it using the equation E=hѵ (where h= Planck’s Constant= 6.626 x 10¯34 J s)Habits of Mind/Life skills being covered:
Asking Questions and Posing Problems
Responding with Wonderment and Awe
Journal Entry:
What happens to an atoms arrangement of electrons when they get excited? What can cause them to get excited?