The Heisenberg Uncertainty Principle states that
a. It is impossible to determine accurately both the position and momentum of an electron simultaneously.
b. No two electrons in the same atom can have the same set of four quantum numbers.
c. electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in any orbital of the set.
d. Two atoms of the same element must have the same number of protons.
e. Charged atoms (ions) must generate a magnetic field when they are in motion.
Answer: A