Ilimi:Kimiyya

Sakamakon sinadaran shine irin nau'in halitta tare da izinin nukiliya ɗaya

Ma'anar "sinadarin sinadarai" ya kasance wani ɓangare na masana kimiyya. Don haka, a cikin 1661, R. Boyle yayi amfani da wannan ma'anar abubuwa da cewa, a cikin ra'ayi, ya rigaya ba zai yiwu ba a rabu da shi a cikin kayan aiki mafi sauki - haɗuwa. Wadannan barbashi an canza ba a lokacin da sinadaran halayen da kuma iya daban-daban girma da nauyi.

Daga baya, a 1789, Lavoisier ya gabatar da teburin farko, wanda ya hada da jikin jikin mutum 33. A farkon zamanin ХІХ. J. Dalton ya gabatar da hypothesis akan kwayoyin halittu, bisa kan abin da J. Berzelius ya ƙayyade a baya ya ƙayyade ƙananan kwayoyin halittu wadanda aka sani. A 1869, D.I. Mendeleev yana buɗewa da lokaci-lokaci tsarin (PS) da kuma lokaci-lokaci dokar. Duk da haka, an fassara fassarar zamani ta wannan batu a baya (bayan binciken G. Mosley da J. Chadwick). A cikin ayyukansu, masana kimiyya sun tabbatar da cewa, cajin na tsakiya zarra ne daidai da m (serial) yawan kashi a cikin SS DI Jami'ar Mendeleev. Alal misali: Be (beryllium), lambar adadi mai lamba 4, cajin tsakiya shine +4.

Wadannan binciken da ayyukan kimiyya sun taimaka wajen gane cewa sashin sinadarin sunadaran nau'o'in nau'in nau'in nukiliya. A sakamakon haka, adadin protons a cikinsu shi ne daya. Yanzu mun san abubuwa 118. Daga cikin waɗannan, 89 ana samuwa a cikin yanayi, kuma sauran sun hada da masana kimiyya. Ya kamata a lura da cewa Ƙungiyar Kasuwanci ta Duniya (IUPAC) ta yarda da abubuwa 112 kawai.

Kowane nau'in haɗin gwanin yana da suna da alamar alama, wanda (tare da lambar serial da maƙasudin kwayoyin zumunta) an rubuta a cikin PS DI. Jami'ar Mendeleev. Alamomin da aka yi amfani da su don yin rikodin nau'o'in atomatik tare da cajin nukiliya guda ɗaya sune harufan haruffan sunaye Latin, misali: oxygen (oxygen latent) - O, carbon (Latin carbon) - C, da dai sauransu. Idan sunan abubuwa da dama sun fara tare da wasika guda ɗaya, to sai an ƙara wata wasika zuwa ga shigarwa ta takaice, misali: jagora (Latin plumbum) - Pb. Wadannan sunayen sune duniya. Sabbin sababbin nau'o'in halittu da nauyin nauyin nukiliya guda ɗaya, waɗanda aka gano a cikin 'yan shekarun da suka gabata kuma ba a yarda da su ta hanyar IUPAC (lambobi 113, 115-118) suna da sunayen sunaye na wucin gadi ba.

Hakanan sinadaran na iya zama a cikin nau'i mai sauki. Ka lura cewa sunayen da sauki abubuwa iya zama daban-daban daga cikin irin sunayen kwayoyin zarra da wannan cajin na nuclei. Alal misali, Ya (helium) ya kasance a cikin yanayi a matsayin gas, wanda kwayarsa ta ƙunshi nau'i daya. Yana iya ma hadu allotropy sabon abu a lokacin da daya kashi iya zama kamar yadda da dama sauki abubuwa (oxygen Yã 2 da lemar sararin samaniya, yã 3). Akwai kuma wani sabon abu na polymorphism, wato, wanzuwar nau'ukan iri iri (gyare-gyare). Wani misali ne lu'u-lu'u, graphite.

Har ila yau, a cikin dukiyoyinsu, nau'in nau'in halitta tare da nauyin daidai na tsakiya ya kasu kashi biyu da ƙananan nau'i. Sabili da haka, nau'in karfe na sinadarai yana da nau'i mai mahimmanci na musamman kuma sau da yawa a cikin halayen sunadarai wanda ya fitar da zaɓin lantarki na waje, kafa cations, da kuma ba da kima ba - yana ƙara ƙwayoyin jiki, kafa ƙungiya.

Yayin da ake haɓaka sinadarai, an kiyaye kashi ɗin, saboda Akwai kawai redistribution na ƙananan barbashi a kan bawo na waje, da kuma nuclei na siffofin da kansu ba canzawa.

Ya bayyana cewa nauyin sinadarin shine tarin wasu nau'o'in halitta tare da nauyin nauyin nuclei da lambar protons wanda ke nuna alamun halayyar.

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