This quantity is constant everywhere in the jellium model, which is improved upon by methods using the generalized gradient approximation to predict this value at different points; those methods include PBE0 (“P-B-E-zero”) and B3LYP (“B-three-lip”). The ground-state properties of a system are uniquely determined by this quantity according to the first Hohenberg–Kohn theorem. This positive, measurable quantity is computed by multiplying an orbital’s wavefunction by its complex conjugate. Computational chemists calculate molecular properties using this quantity’s namesake “functionals.” This quantity is zero at nodes of atomic orbitals, a fact depicted on radial function graphs plotting this quantity against distance from the nucleus. For 10 points, name this quantity equal to a molecule’s negative charge per unit volume. ■END■
ANSWER: electron density [accept charge density; accept probability density; accept density functional theory; accept electron probability; prompt on charge or number of electrons; prompt on rho]
<Chemistry>
= Average correct buzz position