Dmitri Mendeleev is a great Russian scientist of the 19th century.He is recognized as a great chemist who created the periodic classification ofthe elements.Dmitri Mendeleev was born in Tobolsk in 1834. At school,Dmitisucceed in mathematics,physics,and geography but was not good at languages.In 1855 he graduated from Pedagogical institute in St Peterburg with a gold medal for his achievements .In 1856,he received a degree in chemistry.Dmitri Mendeleev's contribution to the world's science was enormous. He was the first created the dependence of the qualities of the elements on their atomic weight.He forecast that the gaps in the table of elements would be filled in by elements whith had not been discovered yet.Dmitri Mendeleev was greatly honoured as a member of academies in many countries.Elements No 101 was named after him.

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4 года назад

Переведите на английский язык, используя модальные глаголы. 1. У меня нет ручки. Не мог бы ты мне дать свою? 2. Возьми зонт. Мо

Sasha92 [21]

1. I have not got a pen. Could you give me yours?
2. Take the umbrella. It may start raining.
3. He does not know where his hat is. He thinks it can be in the kitchen.
4. The tree blocks the window. You must cut it down.
5. It's too late. I'm afraid we must leave.
6. May I open the window?
7. You must wait until 5 o'clock.
8. He can not write letters.

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9 месяцев назад