Answers

2015-05-31T21:11:20+05:30
They never react with any substance or chemical even at high temperatures and they are inert
thats'why to distinguish this unique property they are placed at the bottom of the tablethey are non mettalic,ductile,ductileas they are gases
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they never react with each other
they are non mettalic,ductile,ductile
since they are gases
they volatize at moderate temperatures
Okay thank you :)
2015-05-31T21:35:03+05:30
Group 8 is a group of chemical element in the periodic table. It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). They are all transition metals. Like other groups, the members of this family show patterns in electron configuration, especially in the outermost shells, resulting in trends in chemical behavior."Group 8" is the modern IUPAC name for this group; the old style name was group VIIIB in the CAS, US system or group VIIIA in the old IUPAC, European system.Group 8 should not be confused with the old-style group name of VIIIA by CAS/US naming. That group is now called group 18.

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