The principal quantum number, denoted by 'n', is a quantum number that indicates the relative size and energy level of an electron's orbital in an atom. It is a positive integer that determines the main shell of an electron and influences the atom's electron configuration and chemical properties.

Principal Quantum Number

principal quantum number

quantum number

Relative size refers to the comparison of the size of one object or entity to another, often used to understand scale, proportion, or significance in various contexts. It is a fundamental concept in fields ranging from art and design to physics and biology, enabling the analysis of relationships and hierarchies within systems.

relative size

In physics, an energy level refers to the fixed energies that a quantum system such as an atom, electron, or nucleus can have. These discrete energy levels play a critical role in determining the chemical and physical properties of matter, influencing how atoms bind with each other and interact with electromagnetic radiation.

energy level

electron's orbital

positive integer

main shell

Electron configuration describes the distribution of electrons in an atom's orbitals, providing insight into an element's chemical properties and reactivity. It follows the principles of the Aufbau principle, Pauli exclusion principle, and Hund's rule to determine the most stable arrangement of electrons in an atom's electron shells.

electron configuration

Chemical properties describe the potential of a substance to undergo chemical changes or reactions due to its composition. These properties are intrinsic to the substance and determine its behavior in chemical processes, influencing how it interacts with other substances.

Relevant Degrees

Your Lessons