What are particles for each of the following substances called: 1) Element-
2) Covalent/molecular compound-
3) lonic compound-

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Consider the story you just read. all but one of the choices below indicate that something is living.

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)