At the beginning, the lecturer ask us why Mendeleev was not awarded the the Nobel prize. I was totally innocent of his question. Although I am very familiar with the Elements Period Table, I has never thought this question before.
His question grabbed me immediately and then I listened attentively to his speech. After a brief introduction to the history of the Elements Period Table, the lecturer unhurriedly told us the story. The Elements Period Table is a very important discovery made by Mendeleev. After finding it in 1869, he once talked about it in his class. However,the president took his theory as nonsense and scold him. Fortunately, his prediction was confirmed before long. Therefore, Mendeleev was regarded as the discoverer of the Elements Period Table. By rights he should be awarded the Nobel prize for his marvelous discovery. Unfortunately, he was on bed terms with a Swiss chemist, who happened to be in the committee of the Nobel Prize. Therefore, the Nobel Prize was never awarded to him.