tayyorishlar

Molibden va Volfram

wmoмoмо2o3molibdenvolfram
13 betPPTX75 ko'rildi0 marta sotilgan
13 990 so'm
Islam UZB
Islam UZB688 ta hujjat sotilgan

Tavsif

Molibden is a transition metal found in the periodic group VI of the periodic table. It was discovered by the Swedish chemist Scheele in 1778. Molibden was isolated by the Swedish chemist P. Helm in 1782 by reducing molybdenum (III) oxide (Mo2O3) with carbon. It has an atomic number of 42 and an atomic mass of 95.94. Molibden is a hard metal with a density of 10.2 g/cm3, melting point of 2620°C, and boiling point of 4630°C. It is found in some minerals and can be extracted by certain methods. Molibden reacts with acids.

Hujjat haqida

Kategoriya
Taqdimotlar | Kimyo
Format
PPTX
Hajmi
13 bet
Fayl hajmi
190.71 KB
Muallif
Islam UZB
Qo'shilgan
10.09.2025

O'xshash hujjatlar