concerning atom

concerning atom

Editor basyar_mbs

[COMMON/ PUBLIC] KNOWLEDGE : ATOM come from Greek Atomos word meaning ' do not be solved'. This term [is] first time weared [by] Greek century philosopher to - 5 SM; Democritus. Scientifically conception atom developed [by] John Dalton in the early century to - 19 as the naming of generik for most elementary Iihat vitamin from a[n items. Atom this is elementary compiler from a[n molecule, compound and a number of complex items.

World include plant nature, human being and animal - real lapped over to the hundreds of thousand till millions of items type. That items, if it traced so will represent combination from atom, which amount of its type [is] trusted [by] have reached 109. From that amount 92 atom represent natural items, 17 other atom represent items made in. One among brand element just found [by] [all] year physics 1995 [in] America. Not yet been called, that solid element found from result of reaction of refrigeration [at] absolute zero (- 273 degree of Celsius).

Ascription that atom represent indissoluble and compact globule again become more simple particle in the reality not true. invention [of] Radioactivity by Antonie Henri Becquerel [about/around] hundreds of last year have proved that atom lapped over to the smaller particle again that is electron ( found by Joseph John Thomson), proton ( found by Ernest Rutherford) neutron dn ( found by James Chadwick).

One atom, according to chemistry, structure to the atomic nucleus which consist of proton ( positive bermuatan) electron ( which [is] negative bermuatan) and neutron ( neutral), and also electron which [is] negative bermuatan and circulate to encircle the core of in certain trajectory [is] so-called atom orbital and husk. Amount of electron proton= amount ( because atomic weight have the character of neutrally) showing atomic number. Amount of proton / electron + neutron show atomic weight.

Because external influence, or ' excitement' from within, amount of electron in atom husk can increase or decrease. If/When electron increase the, the atom of anion referred [as] negative bermuatan. On the contrary, if/when amount of its electron decrease, that atom of positive bermuatan , referred [as] [by] [of] cation. Existence of cation and this anion result the happening of reaction of chemistry. Reaction of this chemistry for example resulting aktifitas and change ' life' [in] universe

Science growth had also proved that activities equal but not the same, also happened [in] storey;level of[is core of . Naturally this event can meet [at] atom of[is so-called radioactive element. High lower nya of[is nature of radioactive in the reality related to neutron ratio imbalance / proton. Owner neutron elements more than proton, or n / p > 1, generally have the character of radioactive which marked by existence of peluruhan symptom of[is core of ( transmutasi) during certain bill. With this mechanism, elements [in] nature can turn into smaller other element. By human being technology, nuclear reaction ( or nuclear) can be engineered in a[n reactor. In the form of reaction of fissile ( bisection two radioactive nucleus;core). If/When nuclear reaction made in such a manner, by related to and uncontrollably, can yield awful energi in the form of hot energy and explosion. By this is atom bomb, hydrogen bomb and nuclear warhead made. Level of yielded to be energy to be formulated [by] the following Albert Einstein:

E = c2 m, where E : amount of yielded energy ( kilojoules), m : turned into weight [is] energy ( And c Kg) : velocity of light ( 300.000 Km / second).

At others, nuclear potency earn [is] also controlled and exploited as source of PLTN and irradiation (Power Station Nuclear Energy). Way of this secondly nowadays promoted [by] many people everywhere. Outside awful disaster the most [in] Hiroshima ( 6/8/45) and Nagasaki ( 9/8/45), nuclear had also given many benefit to prosperity [of] external human. Its potency as electrics producer which [is] ' cleanness', proven nuclear can assist various human being effort in doctor, agriculture, geology, space, electronics, and ecology. For example in equipments sterilization, pickling [of] food materials, seeking [of] a bit of blood, tracer leakage [of] irrigation, and also appliance assist industrial process instrumentation and analysis.

Study about atom in the reality desists there. [All] contemporary physics nowadays do not again believe that electron, neutron and proton to smallest unit from a[n atom. They exactly see third it[him] exactly represent aggregate from elementary particle [is] so-called ' Quark' and ' Antiquark' forming meson, baryon, plasma and lambda of[is core of in the form of Neutron and proton. Out of it, there [is] also concept mentioning [it] muon sub particle, neutrino, antineutrino, lepton and others, particle physics term. But, how nature of and that elementary particle characteristic in fact up to now still studied [by] [all] expert.