The spectrum of the hydrogen atom differs from the spectrum of the helium atom due to
A) their different energy levels.
B) the different frequencies of their emitted photons.
C) Both of the above.
D) Neither of the above.
Question 2
Which of the following statements about Gauss's law are correct? (There may be more than one correct choice.)
A) Gauss's law is valid only for symmetric charge distributions, such as spheres and cylinders.
B) If there is no charge inside of a Gaussian surface, the electric field must be zero at points of that surface.
C) Only charge enclosed within a Gaussian surface can produce an electric field at points on that surface.
D) If a Gaussian surface is completely inside an electrostatic conductor, the electric field must always be zero at all points on that surface.
E) The electric flux passing through a Gaussian surface depends only on the amount of charge inside that surface, not on its size or shape.
The Helium Atom.
One-dimensional NMR spectrum of a globin from a marine blood worm
Bohr Model of Hydrogen Atom
A Prototype Hydrogen Fuel Cell Car
Hydrogen ions control acidity
Comparison of the action spectrum and the absorption spectrum