Atoms and molecules make up all of the different substances, including solids, liquids, and gases that are all around us. Models can be used to represent atoms and these models can be rearranged to ...

Wax is made of carbon and hydrogen atoms bonded together in long chains. The chains are tangled, intertwined, and packed together to make the wax. Water molecules are packed more closely together than ...

Like atoms, they can form ordered structures that are commonly referred to as quantum dot solids. In this focus we provide an overview of the electronic properties of quantum dot solids.

because helium atoms are lighter than the atoms in air. So a helium balloon floats! Water has a higher density than air. The particles in a solid are tightly packed, so a lot of particles fit into ...

In crystalline solids, atoms bond together and are arranged in a rigid, jungle gym-like structure called a lattice. This ...

It attained high accuracy, nearly as good as that of quantum-mechanical methods, which are only applicable to materials with ...

The second part provides an introduction to the four key applications of atomic physics: lasers, cold atoms, solid-state spectroscopy and astrophysics. This highly pedagogical text includes worked ...

Cute features in babies and animals are more than just amusing—they trigger powerful evolutionary responses that help our species’ survival. Moo Deng, the baby pygmy hippo that has become ...

The main negatives to such a solid state solution are probably the ... which leaves the oxygen atoms behind.

And while I try to savor the days between now and Christmas (my personal favorite), it’s hard not to get swept up in the ...