Question

what is electronic configuration​

Answer 1

Electronic configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbits.

Answer 2

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↬What is electronic configuration​?

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✿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.

✿For example, the electron configuration of sodium is 1s²2s²2p⁶3s¹.

1s¹

1 = Energy level

s = Type of orbital

¹ = Number of electrone in the orbital

➠However, the standard notation often yields lengthy electron configurations (especially for elements having a relatively large atomic number).

➠In such cases, an abbreviated or condensed notation may be used instead of the standard notation.

➠In the abbreviated notation, the sequence of completely filled subshells that correspond to the electronic configuration of a noble gas is replaced with the symbol of that noble gas in square brackets.