Hassium

Until the early 1990s, the company in Russia sold a collection of Periodic Table of elemental samples. At some point their US dealers have sold the remaining inventory to someone who is currently on eBay. Each sample (excluding gas) weighs approximately 0.25 grams and is packed in a very beautiful wooden box with a periodic table printed on the lid.

Such radioactive elements are represented in this particular collection by a nonradioactive virtual powder that does not look like a real element. (In this case, a sample of pure element is not practical, since the element exists for only a short period as laboratory curiosity.)

Since being manufactured before 1997, they have not even even named ampules: this element has not been named yet.

For more information on this collection, see my page of element collections for general description and information on purchase methods, or see all the samples that appear on my site in a regular table layout or in a larger way You can see. it is a photo. The photos are arranged in numerical order

In the periodic table of elements, it is a transimine element in the d region. Hassim is a member of No. 7 and belongs to the eighth element: hence it is the sixth member of the transition metal 6 d series. Chemical experiments have confirmed that hashium appears as a heavier homologue of ruthenium in group 8. The chemical nature of hashium is characterized only in part, but its chemical properties are equivalent to those of the other eight elements. Many of them are expected to be silver metal where Hassium readily reacts with oxygen in the air to form volatile tetraoxide.

The volatile ha compound (arsenic tetraoxide) selected for gas phase chemistry research from the beginning is clear, but the chemical nature of hash has long been considered a difficult task. Isotopes were first synthesized in 1984 but until 1996 it was not until 1996 that isotopes with sufficient long-lived lives were synthesized for chemical studies. Unfortunately, this isotope 269H is indirectly synthesized by the collapse of 277 CN; the indirect synthesis method is not only disadvantageous for chemical studies, the reaction yield of the isotope 277 CN is low Area is only 1 pb), not enough arsenic is provided. Atoms are used for chemistry research. Direct synthesis of 269 Hs and 270 Hs in the reaction It seems that 248 Cm (26 Mg, xn) 274 - x Hs (x = 4 or 5) is expected to be 7 pb because the reaction cross section is slightly large.