Well, rest easy, because this condensed list of the 18 most popular apple varieties breaks down the information every apple eater should knowâhow to cook them, best recipes, and when they are in season. Red Delicious: A popular eating apple that looks just how we all imagine an apple should.
As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape. A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed.
The glue holding them together is the electromagnetic field, made up of photons. Electromagnetic forces also exist within the nucleus. Molecules are atoms bound together by sharing electrons, and ions are atoms or molecules that have gained or lost one or more electrons, so they are electrically charged. Quantum physics' first great triumph was its ability to explain the behavior of atoms, why they ionize, and how they form into molecules.