Asteel tank with a volume of 9.583 l contains n2 gas under a pressure of 4.972 atm at 31.8 °c. calculate the number of moles of n2 in the tank.
a.
0.002 mol
c.
0.525 mol
b.
0.018 mol
d.
1.90 mol

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?