Some elements can't be found on Earth but are able to exist. That's why scientists make them. They are called synthetic because they were man made. These include elements 43, 61 and 84-118. These are technetium, Promethium and Polonium to Ununoctium. Elements 111-118 aren't identified as real elements yet.
Scientists synthesise elements to discover more about chemistry and physics. If we didn't carrying on with research, we would never discover anything scientifically. It's all about extending our knowledge as humans. It's in our nature to do so.
you mother
radioactive
There are a number of synthetic elements. And a few that are what is called quasi-synthetic. The synthetic ones aren't found in nature. And it could be said that the quasi-synthetic ones are found in nature in only the barest trace amounts. The nice folks at Wikipedia have posted a comprehensive list, and a link is provided. That way you can scan the list quickly, and you will have the added advantage of being able to link to any element that looks interesting. Yes, that's right. All the elements on the list are actually hyperlinks to the Wikipedia article on that element. How cool is that?!
The difference between naturally occuring and synthetic elements is that synthetic elements can't be found naturally - they can only be synthesised by man. Elements after no. 92 (Uranium) are all synthetic.
The elements formed in particle accelerators are usually called Synthetic Elements or Artifically Produced Elements. They are all Transuranium Elements (higher on the periodic table than Uranium), and twenty have been produced so far. Most of them disintegrate within a fraction of a second, some of them in such a short time that it is difficult to verify whether an element has been created or not.
Technetium is an artificial chemical element.
All elements have a useful purpose, including the synthetic actinides that have half-lives measured in milliseconds.
Synthetic Elements are used in smoke detectors.
All the synthetic elements on the Periodic Table appear after Uranium (atomic no. 92). These are the only synthetic elements.
Yes, all synthetic elements are man made.
Synthetic elements might be harmful if they are ingested or inhaled. The elements can cause damage to the lungs, brains, and heart.
Synthetic or man-made elements. Obviously synthetic sounds significantly cooler.
not reactive
radioactive
einsteinium,......
Radioactive
Carbon
While there are some stable synthetic elements (eg technetium) and also naturally occurring elements which are radioactively unstable (eg radium), synthetic elements are more likely to be radioactively unstable. Their decay process produces radioactive emissions which are hazardous.