# Bohr Model Of Atom - Lompoc Unified School District

Bohr Model Of Atom Spectrum Continuous spectrum is the rainbow

of colors containing all wavelengths Line spectrum contains only certain colors or wavelengths When gases are given energy, they emit line spectra which are characteristic of that gas Continuous Spectrum

Line Spectrum of Hydrogen Niels Bohr

Said electrons occupy the atoms in quantized energy levels Each level (orbit) is assigned an integer (n) called the principal quantum number As n increases, the radius of orbit is greater

Energy Energy of the electron depends on the level it occupies En = - RH ( 1/n2) RH is called the Rydberg constant RH = 2.18x10-18 J

When electrons occupy the lowest possible energy level, they are in ground state When in higher levels, they are in excited state Hydrogen Line Spectrum

H atom absorb a quantum of energy Energized electron jumps to a higher level

When it falls back down, it gives off energy as a photon of light The frequency of the light depends on the levels it falls from and to Equation E = EE = Ef Ei h = RH ( 1/nf2 - 1/ni2) frequency of light given off depends on the

level transition Example 1 Calculate the frequency and wavelength of light given off when an electron in a H atom falls from n=4 to n=2. What color is it?

Ionization of Energy Energy that would be needed to completely remove the electron; make it go from n = 1 to n = Example 2

Calculate the energy required to ionize an electron from the ground state.

## Recently Viewed Presentations

• Cold-potato routing is the opposite, where the originating autonomous system holds onto the packet until it is as near to the destination as possible. Source; wikipedia Hot potato illustration AT&T VERIZON BOSTON SAN FRANCISCO Exit network quickly Peer AS BGP...
• Transition class offered by Lvn tri club in APRIL- will show that slide later Even IM walk Consider a Bike ride early that week maybe a light run two days prior to the race * See ankle chip on left...
• All rungs and steps are free of oil, grease, dirt, etc. All fittings are tight. Spreaders or other locking devices are in place. Non-skid safety feet are in place. No structural defects, all support braces intact. DO NOT use broken...
• A Conceptual Framework for Understanding Race, Class, Gender, and Sexuality ... Bad; Worthy, Unworthy - By claiming that this is part of nature or biology, dominant groups justify this polarization. - Weber claims that, upon examination, race, gender, and sexuality...
• Potential increases by <= floor(log2 n). amortized complexity = actual complexity + DP <= 1 + floor(log2 n) S m B Other Operations actual complexity = # of splay steps amortized complexity = actual complexity + DP = # of...
• CC protocol for large SMPs Cache line has three states Whenever we need a cache coherence operation, we tell the central authority serializes the access performs the cache coherence operations using point-to-point communication. It needs to know who has a...
• A reference point - a starting point used to describe the position of an object. 2.) A reference direction that describes which way to move in relation to the reference object. 3.) A distance from the reference point. Reference Points...
• LIGHT. Energy is the ability to cause change. Light is a form of energy that you can see. Light and sound are forms of energy that travel in waves. Light waves travel in straight lines in every direction away from...