SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »BOR
BOR (lot. Borum), V, unsuri kimiyoii guruhi III jadvali davrii Mendeleev; raqami tartibiash 5, massai at. 10,811. Soli 1808 olimoni faronsavi J. Gey-Lyussak va L. Tenar kashf kardaand. Bori tabii az du izotop – 10V (19%) va 11V (81%) iborat ast. Bor 3*10-4 darsadi massai qishri zaminro tashkil medihad. Moddai …
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