Electron Configuration and Vocabulary

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What is the maximum number of electrons that one orbital can hold?

Back

2 electrons.

Front

What is a principal energy level?

Back

The main energy level of an electron in an atom, denoted by a positive integer (n).

Front

What is the highest principal energy level in the configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²?

Back

6.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does chlorine have?

Back

7.

Front

What is the maximum number of electrons that the d sublevel can hold?

Back

10 electrons.

Front

What element in principal energy level 4 has 5 valence electrons?

Back

Arsenic (As).

Front

What is the Aufbau principle?

Back

The principle that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What is Hund's rule?

Back

Electrons will fill degenerate orbitals singly before pairing up in the same orbital.