For Better Future

Month: February 2015

ATOM AND HISTORY his invention


During school we’ve learned about atoms and theirr use in life, be it for goodd or as weapons of mass destruction. And what about the history of the discoveryy of the atom itself, I am sure there are many people who do not know, here’s his review:

The development of atomic structure was donated by many scientists. Chronology of the atomic structure revealed the discovery of atomic particles and their arrangement in the atomm.

Atoms are the building blocks of all matterr. An atom consists of three particles – neutrons (no charge), protons (positively charged) and electrons (negatively charged). The numberr of protons present in the atom is called the atomic number, while the mass of the atom is the number of protons plus the average number of neutrons. Each different elements foundd in nature differ in the number of third-atomic particles. In general, atomic number used to define an element, for example, an element with atomicc number 8 is oxygen and vice versa. An element has a fixed number of protons, but can have varying numbers of neutrons. Atoms withh different numbers of neutrons are called as isotopes.

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