Not in the "natural" elements (the first 92), but we know of no limit to the trans-urantic elements.
A2: Some gases were first discovered by their spectrums--the yellow line of helium in the sun was observed long before it was found on earth.
Rubidium was one of them but im not sure about the others.
Yes
scientists
They will either bind on a mollecular scale to form "solutions", or on a non-mollecular scale to form "mechanical mixtures". Certain properties will cause the mixture to combust, give off gasses, or other things, depending on the elements and the ratios.
It depends upon what elements X and Y are, but under certain circumstances, it could yield compound XY.
when certain elements (such as steel) are exposed to oxygen, they react, and rust is formed. However this reaction is very slow
it says sulphide so it is oxygen so it is iron, sulphur and oxygen but not in this order you may need to research the order as it is a certain one
The presence of certain elements is certified by spectroscopy.
spectral analysis of light of stars help us
yes because its made of certain elements.
To identify the presence of certain metal ions, such as sodium and caesium.
scientists
If you notice that a compound is composed only of 1 of certain elements, you can deduct they are ionicly bonded. The 7 chemicals are Hydrogen, Oxygen, Fluorine, Bromine, Iodine, Nitrogen and Chlorine. If you discover a new one contact me at natevd95. Hope this is helpful.
It is a compound. All pure elements have a certain exact melting point.
No. Only 2 elements are liquid at room temperature, these are Mercury and Bromine. Mercury(II) bromide or mercuric bromide is the chemical compound composed of mercury and bromine with the formula HgBr₂. This white crystalline solid
When 2 or more elements make a chemical bond giving a new material that material wi be a compound,
A compound is formed. The process may require a certain amount of energy (heat) to react, or it may release energy in the form of heat.
Yes. Compounds can undergo chemical changes to become elements. An example would be the following: Zn(s) + CuCl2(aq) ===> ZnCl2(aq) + Cu(s). THe CuCl2 is a compound and it is changed into the element Cu(s) and also into zinc chloride.
They will either bind on a mollecular scale to form "solutions", or on a non-mollecular scale to form "mechanical mixtures". Certain properties will cause the mixture to combust, give off gasses, or other things, depending on the elements and the ratios.