1. What is the wavelength (in meters) of a radio wave with a frequency of 9.31 x Hz?

2. Calculate the energy of:
a) a photon with a wavelength of 5.00 x nm.
b) a photon with a wavelength of 5.00 x nm.

3. The energy of a photon is 5.87 x J. What is its wavelength in nm?

Motivation cannot be developed with practice; a person either possesses it or they do not.

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

What is the mass of 8 moles of sodium atoms