Electron Configuration & Groups on the Periodic table

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, indicating how electrons are arranged around the nucleus.

Front

What is the Aufbau principle?

Back

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

Front

What are valence electrons?

Back

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

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined from the element's group number in the periodic table.

Front

What is the significance of the principal quantum number?

Back

The principal quantum number indicates the main energy level of an electron in an atom, with higher numbers corresponding to higher energy levels.

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the electron configuration of an atom, showing the distribution of electrons in orbitals.

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

A single orbital can hold a maximum of 2 electrons, which must have opposite spins.

Front

What is the difference between s, p, d, and f orbitals?

Back

s orbitals are spherical, p orbitals are dumbbell-shaped, d orbitals have more complex shapes, and f orbitals are even more complex.

Front

What is the electron configuration for nitrogen (N)?

Back

The electron configuration for nitrogen is 1s² 2s² 2p³.

Front

How many total electrons are in the 3rd energy level?

Back

The 3rd energy level can hold a maximum of 18 electrons (2 in s, 6 in p, and 10 in d orbitals).