GENERAL KNOWLEDGE

Detailed explanation-1: -The electron configuration of an element describes how electrons are distributed in its atomic orbitals. Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence.

Detailed explanation-2: -In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.

Detailed explanation-3: -The distribution of electrons into orbitals of an atom is called its electronic configuration.

Detailed explanation-4: -Electron configurations describe where electrons are located around the nucleus of an atom. For example, the electron configuration of lithium, 1s²2s¹, tells us that lithium has two electrons in the 1s subshell and one electron in the 2s subshell.

Detailed explanation-5: -In simple terms, the Aufbau principle means fill the orbitals from bottom to top. In simple terms, Hund’s rule requires single occupancy before pairing. Pauli Exclusion Principle. No two electrons in a atom can have an identical set of four quantum numbers.