Within a period, the element with the lowest atomic atomic number tends to have the atomic radius.

*Smallest
Or
*Largest

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

Define the kinetic molecular theory

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?