Editing Synthetic element (section)

==Other elements usually produced through synthesis==
All elements with [[atomic number]]s 1 through 94 occur naturally at least in trace quantities, but the following elements are often produced through synthesis.

{| class="sortable wikitable"
! Element name !! Chemical<br />symbol !! Atomic<br />number !! First definite<br />discovery !! Discovery<br>in nature
|-
| [[Technetium]]‡ || Tc || 43 || 1937 || 1962
|-
| [[Promethium]]‡ || Pm || 61 || 1945 || 1965<ref>{{Ullmann|volume=31|page=188|last1=McGill|first1=Ian|contribution=Rare Earth Elements|doi=10.1002/14356007.a22_607}}</ref>
|-
| [[Polonium]]  || Po || 84 ||| 1898||style="background:red;"|
|-
| [[Astatine]]‡ || At || 85 || 1940 || 1943
|-
| [[Francium]] || Fr || 87 || 1939||style="background:red;"|
|-
| [[Radium]] || Ra || 88 || 1898||style="background:red;"|
|-
| [[Actinium]] || Ac || 89 || 1902||style="background:red;"|
|-
| [[Protactinium]] || Pa || 91 || 1913||style="background:red;"|
|-
| [[Neptunium]]‡ || Np || 93 || 1940 || 1952
|-
| [[Plutonium]]‡ || Pu || 94 || 1940 ||1941–42<ref>{{cite journal | last=Seaborg | first=Glenn T. | last2=Perlman | first2=Morris L. | title=Search for Elements 94 and 93 in Nature. Presence of 94<sup>239</sup> in Pitchblende<sup>1</sup> | journal=Journal of the American Chemical Society | publisher=American Chemical Society (ACS) | volume=70 | issue=4 | year=1948 | issn=0002-7863 | doi=10.1021/ja01184a083 | pages=1571–1573}}</ref>
|}

‡ These five elements were discovered through synthesis before being found in nature.