New: mendeleev

earthquakes (49)in mendeleev • 6 years ago
Happy birthday periodic table!
150th anniversary of the periodic table Russian chemist Dmitri Mendeleev presents the first periodic table of the elements to the Russian Chemical Society on March 6, 1869. An "alternative"…
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Disagreement on rewards
Fraud or plagiarism
Hate speech or trolling
Miscategorized content or spam

Submit
$0.00
1