What was discovered in atomic spectra by physics pioneers Balmer, Rydberg, and Ritz?
A) unexplained randomness
B) mathematical order
C) all atoms are about the same size
D) electrons occupy well-defined shells about the atomic nucleus
E) electrons behave as standing waves
Answer: B
You might also like to view...
Recent work with type I supernovae at great distances suggests the universe may in fact be accelerating its expansion, a discovery attributed to a newly found:
A) repulsive charge on dark matter. B) polarization and a universal spinning magnetic field. C) dark energy. D) magnetic field associated with antimatter. E) mass determined for the neutrinos.
The fact that a particle cannot be precisely localized is the
a. photoelectric effect. b. uncertainty principle. c. principle of a hologram. d. principle of a laser. e. reason why photons are emitted.
You see colors with a prism because of
a. interference b. diffraction c. specular reflection d. dispersion e. polarization
For an edge dislocation, the Burger’s vector is _____________to the dislocation line.
Fill in the blank(s) with the appropriate word(s).