I know that one band is classic Thrash and one is Nu-Metal, but these are my favorite bands. Why is it that metal purist love to discriminate against Nu-metal bands? Slipknot might not be as thrash as Slayer but the Vocals are much heavier than slayer. Slipknot is obviously not death metal but they are the heaviest and one of the most innovative and talented bands around. I personally don't care if i'm not a true quot;metalheadquot; if I like slipknot, I just wanted to get your opinions. Why do people discriminate against Slipknot?
name the basic property on which metals and non metals are diffrentiated. the answer being : on electrical conductivity
OK here is a question. Is Sodium a metal or non metal?
It's a non-metal. However, in 1935, a group of chemists at Princeton University predicted that hydrogen may behave like a metal at pressures in excess of 250,000 atmospheres (25GPa). This initial prediction was found to be incorrect, and now a team from Edinburgh University are attempting to observe metallic hydrogen using pressures of 5,000,000 atmospheres and above (>500GPa). To put that in perspective the pressure on you right now due to the atmosphere is around 101kPa, depending on your location and local weather. Also, solid hydrogen is used to describe hydrogen when it is in its solid state. This isn't quite the same as metallic hydrogen, as they exhibit different properties. It's still hydrogen, though.
Actually the answer to this question is slightly more complicated than the average cynic would have it. (By the way, sodium is a metal). Metals have several properties common to them: 1. They conduct electricity 2. They are ductile, and malleable 3. They are GENERALLY white and lustrous (few exceptions, such as copper, gold...lustrous but yellow/red) 4. They conduct electricity and heat very well. 5. They have generally low electronegativities compared to non-metals. For non-metals, reverse these properties and you have a good physical description. E.g. They don't conduct electricity or heat very well, they're not malleable or ductile, they're generally not lustrous, their electronegativities are relatively high, etc. You find most metals GENERALLY to the left on the Periodic Table, while you find non-metals generally to the right. That notable jagged line you see on many periodic table examples is said to divide the two categories, but it's a fuzzy line at best. There are metalloids, for example, that contain SOME properties of each, making life interesting for us chemists who like to classify things.
