This model, which is the basis of the modern understanding of the atom, is known as the quantum mechanical or wave mechanical model. The fact that there are only certain allowable states or …

Quantum mechanical model of hydrogen atom Learn Quantum Wavefunction The quantum mechanical model of the atom

Explore modern theories that describe atomic structure through various models, such as the Bohr model and the quantum mechanical model. Learn about the benefits and limitations of each model and …

The nucleus is shown as a tiny clump of red protons and purple neutrons in the center of the atom. Another name for the electron cloud model is the quantum mechanical model. It was first developed …

The Bohr model turns out to be incorrect, and quantum mechanics has proven to be the best way to explain electrons in orbitals. We can describe those electrons in orbitals using the four quantum …

The modern quantum mechanical model may sound like a huge leap from the Bohr model, but the key idea is the same: classical physics is not sufficient to explain all phenomena on an atomic level.

And this is one reason why the Bohr model is nice to look at, because it gives us these quantized energy levels, which actually explains some things, as we'll see in later videos.

Electron configurations describe where electrons are located around the nucleus of an atom. For example, the electron configuration of lithium, 1s²2s¹, tells us that lithium has two electrons in the 1s …

An orbital is a region around an atom's nucleus where electrons are likely to be found. Different types of orbitals (s, p, d, f) have different shapes and can hold different numbers of electrons. Learn how …

The quantum model Explore Schrödinger's quantum mechanical model of the atom. Learn about energy levels and orbitals. Write electron configurations for elements and atoms.