Highly unreactive elements that will not chemically combine include:
Platinum (Pt)
Gold (Au)
Helium (He)
Argon (Ar)
Krypton (Xe)
Neon (Ne)
The first two are unreactive because they are at the bottom of the metals reactivity series. The rest are unreactive because they are part of the inert gases.
carbon gayoxide
native elements
These metals are very unreactive and are "noble". This basically means that they would not react with any other elements found in the earth's crust.
Uncombined hydrogen is found in atmosphere in small concentration.
Synthetic elements are not found in nature but are created in laboratories.
Native elements are those found by themselves, in pure form, uncombined with other elements into minerals. Of all the elements, only about thirty native elements are known, including metals like copper, gold, lead, and iron; semi-metals like antimony, arsenic, bismuth, and tellurium, and non-metals like diamond, sulfur, and selenium. --------- carbon
Ag(silver), Au(gold), Pt(platinum), Cu(copper) are found in free state
The metal would be known as an elemental. Metal is most commonly found in nature as an ore, a mixture of the metal and other elements. Most metals are not found in their elemental form, copper being one of the exceptions.
no
Uncombined
They are very reactive.They cannot be found uncombined.
No
These metals are very unreactive and are "noble". This basically means that they would not react with any other elements found in the earth's crust.
group 1 elements
yes :)
true
Zinc is usually combined with other elements.
Copper (Cu), silver (Ag), gold (Au) ....Osmium (Os) is also found in nature as an uncombined element sometimes. Rhodium (Rh) can occur as a rare deposit in uncombined form, for example in Montana, USA.Platinum (Pt) nuggets also occur naturally in the uncombined state.Tellurium (Te) is sometimes found in its native (elemental) form.Chromium (Cr), lead (Pb) and mercury (Hg) have also been found in uncombined form, but this is extremely rare. For more information see Related links below this box.
Never, these metals are very reactive.