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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 Jan 1939 Jahr - Francium was discovered
Beschreibung:
In 1939, francium was discovered, itwas the last element to be discoveredin natural compounds.
Zugefügt zum Band der Zeit:
Science Timeline
By
Chloe Tierney
14 Feb 2020
1
0
228
Datum:
1 Jan 1939 Jahr
Jetzt
~ 86 years ago
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