At the normal melting point of nacl, 801 degrees c, its enthalpy of fusion is 28.8 kj / mol. the density of the solid is 2.165 g/cm^3 , and the density of the liquid is 1.733 g/ cm^3. what pressure increase is needed to raise the melting point by 1.00 degrees c?

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?