How many mL of water would I need to add to 129. mL of a 10. M solution to make its concentration 7.0? Will mark brainliest, ASAP NEED HELP RIGHT NOW PLEASE SAVE MY GRADE

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?