If a central atom has four groups attached to it, the geometry about the central atom is: a) triangular. b) linear. c) pyramidal. d) tetrahedral.

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart

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?

Why protons do not repal in the nucleus