massasi 19. Neytronlar soni 10. Bu element gaz, Ftor, reaksiyani tezlashtiradi, ammo oʻzi sarflanmay qoladi. , katalizator, Bosim qanday moddalarga taʼsir qiladi, gaz moddalarga, benzin, yogʻ, metan, propan, spirt. , suyuq va gaz, kaliy, kalssiy, nikel, titan, Metallar, magnitga tortiluvchi metall, Temir, qaysi elementni teskari nomi elektr tarmoqlarida ishlatilinadigan buyum hisoblanadi, Mis, shakar, koʻmir, tuz, olmos qanday moddalar, qattiq moddalar, tabiatda moddaalr necha hil koʻrinishda boʻladi , qattiq, suyuqlik, gaz , suv b.n reaksiyaga kirishmaydigan metallarni toping, mis, oltin, kumush.

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