Gastritis is often caused by the gastric mucosa failing to produce the right amounts of gastric juices, the MUSC Digestive Disease Center reports. Sometimes an endoscopic exam reveals the stomach's mucosal layer to be inflamed and swollen. The exam may even show bleeding areas in the stomach.
Daltonâs atomic theory stated that: All the matter is made of atoms which are tiny particles and indivisible. All the given atom of the element is identical in mass, size, shape, and in other properties. All different elements have different types of atoms and also different in their mass, size, shape, and in other properties.
1 All atoms of a given element are identical; atoms of different elements have different properties. 2  Dalton's theory suggested that every single atom of an element such as oxygen is identical to every other oxygen atom; furthermore, atoms of different elements, such as oxygen and mercury, are different from each other.ecause of Aristotle's great influence, Democritus's theory would have to wait almost 2,000 years before being rediscovered. In the seventeenth and eighteenth centuries CE, several key events helped revive the theory that matter was made of small, indivisible particles.