পৃথিবীর সবচেয়ে দামি এলিমেন্ট

The most expensive element found on Earth is not gold, nor platinum. Rather, its name is francium. Its atomic number is 87, and the price of 1 gram is approximately 1 billion dollars — that is, more than 70 billion rupees for just 1 gram. This element has a half-life of only 22 minutes, meaning that half of its atoms decay in just 22 minutes. So although it does occur on Earth, it disintegrates so quickly that collecting it is nearly impossible. In simple terms, only about 24.5 grams of francium exist across the entire Earth’s crust. For this reason, it is produced artificially, which is why it is extremely, extremely expensive. #FactStoryBengali #MostExpensiveElement #RareElement #Francium #RareOnEarth #DailyFacts