Electron Configurations

Front

What is the maximum number of electrons an orbital can hold?

Back

2 electrons

Front

How many valence electrons does an atom with the electron configuration 1s²2s²2p⁶3s²3p⁶ have?

Back

8 valence electrons

Front

What atom has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d⁹?

Back

Gold

Front

What atom has the electron configuration 1s²2s²2p⁶3s²?

Back

Magnesium

Front

What is the highest occupied energy level in the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d⁹?

Back

6

Front

Define electron configuration.

Back

The distribution of electrons in an atom's orbitals.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and reactivity.

Front

What is the Aufbau principle?

Back

Electrons occupy the lowest energy orbitals first.

Front

What is Hund's rule?

Back

Electrons will fill degenerate orbitals singly before pairing up.

Front

What is the Pauli Exclusion Principle?

Back

No two electrons in an atom can have the same set of four quantum numbers.