1. Which one of the following best describe sublimation? A. A solid melting to a liquid which re solidifies.

B. A solid melting to a liquid which evaporates, the vapor condensing to a liquid and then recrystallizing.

C. The movement of gaseous particles so that they fill the spaces that they occupy.

D. A solid forming a vapor on heating and reforming as a solid on cooling.

E. The bombardment of large molecules by small molecules.

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?