A biochemist starts with 211.4 grams of pure carbon. After hydrogenation, the sample weighs 249.4 grams. The molecular mass of the product is roughly 100 AMU. Determine the empirical and
molecular formulas.

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?