Pauli Exclusion Principle states that electrons occupy the orbitals of lowest energy first True or false

D)can be increased in a closed system

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

Neither model is able to show the reactivity of potassium.