No two electrons can have the same four quantum numbers is known as (the) Group of answer choices Heisenberg uncertainty principle. Pauli exclusion principle. Aufbau principle. Hund's rule.

How do you tell if someone actually cares about you? and just say they do?

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.