To remove a tight-fitting lid from a jar, Megan runs the lid under hot water. What happens to the Jar lid when its temperature increases?
A. The temperature increases, and the lid expands
B. The temperature decreases, and the lid contracts.
C. The potential energy increases, and the lid contracts.
D. The potential energy decreases, and the lid expands

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?