What are synthetic elements ? Mention two synthetic elements and write the nuclear equations leading to their synthesis.

Explanation

The elements which do not occur in nature but are produced by nuclear reactions are called synthetic elements.
The elements technetium `(Tc)` , promethium `(Pm)`, and fracium `(Fr)` are synthetic elements .
`{:("Synthesiselement",,,Z,"Nuclearreaction"),("Technetium"(Tc),,,43, ._(42)Mo^(96)+ ._(1)H^(2)rarr._(43)Tc^(97)+._(0)n^(1)),(Promethium(Pm),,,61,._(60)Nd^(150)+._(1)H^(2)rarr._(61)pD^(151)+._(0)n^(1)),(Fracium(Fr),,,87,._(89)Ac^(227)rarr._(87)Fe^(223)+._(2)He^(4)):}`