25
#of
protons
# of
neutrons
# of
electrons

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

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

Who examines and coordinates the cleanup of polluted sites?