Search results with tag "Of the atom"
PowerPoint - Models of the Atom - A Historical Perspective
www.lcps.orgHISTORY OF THE ATOM Cathode Ray Tube •The cathode ray tube (CRT) is a vacuum tube containing a gas at (low pressure) with an electron emitter and a fluorescent screen used to view images. It has a means to accelerate and deflect the electron beam onto the fluorescent screen to create the images .
The Manhattan Project - Office of Scientific and Technical ...
www.osti.govan atom’s nucleus, much as the planets orbit the sun. The second fundamental atomic particle, the proton, was “identified by Rutherford in 1919.” The Danish physicist Neils Bohr combined Rutherford’s atomic concepts with Max Planck’s quantum theory to produce the first modern model of the atom. In 1913, Bohr demonstrated
The History of the Atom - Socorro Independent School …
www.sisd.net1. The nucleus of the atom is a dense mass of positively charged particles. 2. The electrons orbit the nucleus 3. A problem raised was: Why are the negatively charged particles not attracted by the positively charged nucleus 4. Rutherford stated that the atom was like a mini solar system and that the electrons orbited the nucleus in a wide orbit.
Atomic Structure and Electron Configurations Multiple ...
content.njctl.orgAtomic Structure and Electron Configurations Multiple Choice PSI Chemistry Name:_____ 1. Rutherford’s Nuclear Model of the atom A. is the currently accepted atomic model. B. explains the unique emission spectra of different elements. C. does not account for the stability of most atoms since accelerating electrons