Since the first element ever produced synthetically was Technetium, then it will be in the Transition Metal block.
Butane is an alkane produced synthetically from petroleum.
There is no inherent difference. Any given chemical is the same no matter where it comes from. For example, ethanol made by yeast is the same as ethanol made from petroleum. However, there are many synthetically-produced chemicals that are not made in nature. People are reasonably concerned about these, because their biological effects are not always known. However, it is important to remember that just because a chemical is synthetically produced does not make it inherently bad. Many vitamin supplements are synthetically produced, while there are many carcinogens and toxins that naturally occur in plants. The important thing is what the chemical is, not how it was made. One should be careful about chemicals whose effects are not fully known--a category which many synthetic chemicals fall under.
Yes, it is.
no, unless it is not
yes. Phosphorus-32 is synthetically produced. but only for research reasons.
This isotope does not occur in the environment and thus must be produced synthetically.
Hallucinogens are naturally-occurring or synthetically-produced drugs that can cause hallucinations
naturally
MCR.
It can't be grown or produced synthetically.
Interferon
Since the first element ever produced synthetically was Technetium, then it will be in the Transition Metal block.
Yes, most of the main isotopes of platinum are natural, all others- including radioisotope Pt-197-must all be synthetically produced in a laboratory.
Butane is an alkane produced synthetically from petroleum.
No. There are twenty elements that can only be produced synthetically.
Lawrencium is an artificial element.