Atom Research Paper - 1677 Words

Atoms Atom is the fundamental building block of all stuff, or what scientists like to call matter. An individual atom is very small. In fact, the smallest type of atom, hydrogen, has a diameter of 10-8 cm. Every single object is composed of atoms. Our body is made up of many, many individual atoms. There are also many different types of atom. These different types are called elements. Examples of some elements are hydrogen, oxygen, and helium. Under normal conditions many atoms can stick together to form larger, different stuff. Scientists call material that results from the joining of different types of atoms compounds. Atoms are not the smallest things there but are made up of still smaller stuff. Also, atoms can be broken apart†¦show more content†¦At a later moment, they are struck more on another side and so change their direction of motion. Many scientists, who had previously resisted the notion of atoms because they could not be observed, were convinced by Einstein’ s explanation of Brownian motion. Now we have special microscopes capable of enabling us to see single atoms. A molecule may consist of two or more different kinds of atoms or may consist of one or more of the same kind if atom. For example, the two principal of gases of the air of our atmosphere are nitrogen and oxygen. Each molecule of gaseous nitrogen is composed of two atoms of nitrogen bound together by electrical forces, and likewise for gaseous oxygen. A rarer gas in our atmosphere is carbon dioxide, a molecule of which contains one atom of carbon and two atoms of oxygen. On the other hand, molecule of helium gas contains only one atom of helium. Atoms are bound together to form molecules by electrical forces. The composition of atoms Atoms are neutral as a whole, they consist of smaller particles that are electrically charged. If two atoms are far apart compared to the size of the atoms, each atom acts like an electrically neutral object because the effects of the positive and negative charges cancel each other out. However, if the atoms are close together, each feels the electrical forces from the charged constituents of the other because the positive andShow MoreRelatedAn Extraordinary Man From Demark920 Words   |  4 PagesOn October 7, 1885, an extraordinary man from Demark was born. A baby boy, who was yet to find out the impact he would have on this world. This man was Niels Bohr, and he made fundamental contributions in the way one can understand the atom s structure. In addition to the structure, he also had an impact in the early development in quantum mechanics. His impact not only made a change in history, but also changed the way people looked at the atom’s structur e. We can now build and learn from NielsRead MoreJohn Dalton s Atomic Theory1360 Words   |  6 Pagescollege. 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