Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has been getting bigger since the Big Bang. When the hydrogen and helium atoms ...

What is Atom and Molecule? Atoms and molecules are an important part of science and the building blocks of matter. Understanding them is the foundation for understanding all branches of science.

Density functional theory is a widely used computer-based quantum mechanical method for calculating properties of atoms, ...

Researchers in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a machine learning framework that can predict with quantum-level accuracy how materials ...

Students will record their observations and answer questions about the activity on the activity sheet. The Explain It with Atoms and Molecules and Take It Further sections of the activity sheet will ...

And the company has built on that nanotechnology foundation, storing information on specific gold atoms, collecting carbon monoxide molecules into computer logic circuits, and pursuing a vision ...

The author employs effective Hamiltonians and Hund’s case (a) basis wave functions to develop the energy level structure of diatomic molecules. These techniques also form the basis for treating ...

Heavy-atom molecules can possess complicated electronic structures due to pronounced electron correlation and relativistic effects. Here, the authors describe electronic states of RaF in detail by ...

We experimentally simulated how specific real molecules behave after absorbing light. We used what is called a trapped-ion quantum computer. This works by manipulating individual atoms in a vacuum ...

Exotic atoms and molecules are forms of basic matter in which one subatomic particle is replaced by another with the same charge. For instance, an electron can be replaced with a muon, a pion or ...