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ID number:947552
 
Author:
Evaluation:
Published: 10.11.2006.
Language: Latvian
Level: Elementary school
Literature: 4 units
References: Not used
Extract

1787. gadā Rietumskotijā pie Stronšjenas (angl. Strontian) atrada nepazīstamu minerālu, ko pēc atrašanas vietas nosauca par stroncianītu. 1808. gadā no šī minerāla H. Deivijs ieguva stroncija oksīdu SrO. Lietojot dzīvsudraba katodu, samitrināta stroncija oksīda elektrolīzes gaitā radās stroncija amalgama. Pēc dzīvsudraba atdestilēšanas palika metāls, kuru H. Deivijs ierosināja nosaukt par stronciju.
Vieta sistēmā
38 Sr
V periods (lielais)
II A grupa
Atomu uzbūve
38 Sr ) 2 ) 8 ) 18 ) 8 ) 2

Sr 1s2 │2s2 2p6 │3s2 3p6 3d10│4s2 4p6 4d0 4f0│5s2│ …

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