Because scientists just simply add a proton to an element, and they get the next element. For example, of you had one sodium atom (all sodium atoms have an atomic number of 11), and added a proton to it, you would get magnesium atom (all magnesium atoms have an atomic number of 12). So if scientists did this with element 99, they get element 100.
The current periodic table contains 118 elements, as of April 2010, but many more may still be discovered.
The most common elements for a compound are the following:HydrogenOxygenCarbonNitrogenChlorineIodinePotassiumBromineCesiumFluorineRubidiumWhy you might ask?These are all the natural occurring Alkali Metals, Halogens, and Diatomics. Carbon and Hydrogen are needed for basic sugars, hydrocarbons, carbohydrates, and much more so I threw them in there.
There are many elements that have only one naturally occurring isotope. When you get to transuranic elements the elements all have no naturally occurring isotopes. But all elements have isotopes, they just have to be created, maybe in a nuclear reactor or particle accelerator or a supernova explosion.
It is difficult to determine an exact number of elements left to discover as new elements are constantly being synthesized in laboratories. However, the periodic table is thought to be mostly complete, with the discovery of new elements becoming increasingly rare due to their short lifespans and high reactivity.
Osmium is slightly more dense than Iridium by a small fraction.
assuming you mean elements, there are 92 naturally occurring elements. 93+ are man made and the are still creating more.
The current periodic table contains 118 elements, as of April 2010, but many more may still be discovered.
There are about 112 elements identified and for the time being 6 more proposed. Out of the first 92 elements, 1 being hydrogen (H) and 92 being uranium (U), there are 90 that are naturally occurring. Technetium (Tc) and promethium (Pm) are man-made elements and do not have any isotopes occurring naturally. All elements after atomic number 92, are man made.
A radioactive element is one that does not have a stable occurring isotope. Some of these elements include astatine, radon, technetium, promethium and so many more.
That is correct. Minerals are solid, inorganic substances that are composed of one or more naturally occurring chemical elements. They have a specific chemical composition and atomic structure.
The most common elements for a compound are the following:HydrogenOxygenCarbonNitrogenChlorineIodinePotassiumBromineCesiumFluorineRubidiumWhy you might ask?These are all the natural occurring Alkali Metals, Halogens, and Diatomics. Carbon and Hydrogen are needed for basic sugars, hydrocarbons, carbohydrates, and much more so I threw them in there.
No. Uranium is the heaviest naturally occurring element. More elements can be prepared artificially. New isotopes of the element may be discovered.
There are many elements that have only one naturally occurring isotope. When you get to transuranic elements the elements all have no naturally occurring isotopes. But all elements have isotopes, they just have to be created, maybe in a nuclear reactor or particle accelerator or a supernova explosion.
The reason why there are more minerals than the number of elements is because minerals are not made up of a single element only. They are made of more than one elements and in some case a combination of elements .
You might be referring to the chemical elements. However, we are now aware that there are 96. For more information you might wish to consult the wikipedia page about chemical elements.
Precious metals are rare, naturally occurring elements that are less chemically reactive and more corrosion resistant than most elements. They are usually ductile and have a high luster.
There are at least five million distinct chemical compounds known. This compares to only 91 naturally occurring elements and about thirty more synthetic elements.