In a magnetized object, most of the domains point a. in the same direction.
b. in an east-west direction.
c. in different directions.
d. perpendicular to one another.

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j