Question

Distribution of electron in various energy levels or shells of an atom is called ............ .

• A. Electronic configuration
• B. Atomic configuration
• C. Electron configuration
• D. None of these

Answer 1

Answer: (A)

Electronic configuration

Distribution of electrons in different energy levels or shells of an atom is known as electronic configuration.

The normal electronic configuration of an atom is $1s^{2}2s^{2}2p^{6}3s^{2}3p^6......$ and so on. The electrons are filled in the shells according to the increasing energy of the shells.

Option A is the correct answer.