Ответы на вопрос:
In 1869 the great Russian scientist Dmitri Mendeleyev announced the discovery of the Periodic Law of elements. So science received the key to the secrets of matter.
All the greatest discoveries which have been made since then in the fields of chemistry and physics have been based on this law.
The elements in Mendeleyevs Periodic Table follow one another in the order of their atomic weights. They are arranged in periods and groups.
Mendeleyev s discovery made it possible for the scientists to find 38 new chemical elements to fill the empty spaces left in the Periodic Table.
At the same time they tried to find elements heavier than the last element in the Periodic Table.
In 1955 the American scientist Dr. Glenn Seabord obtained element No 101 and named it Mendelevium in honour of the creator of the Periodic Law.
All the greatest discoveries which have been made since then in the fields of chemistry and physics have been based on this law.
The elements in Mendeleyevs Periodic Table follow one another in the order of their atomic weights. They are arranged in periods and groups.
Mendeleyev s discovery made it possible for the scientists to find 38 new chemical elements to fill the empty spaces left in the Periodic Table.
At the same time they tried to find elements heavier than the last element in the Periodic Table.
In 1955 the American scientist Dr. Glenn Seabord obtained element No 101 and named it Mendelevium in honour of the creator of the Periodic Law.
Parties, apples, glasses, photos, potatoes, countries, holidays, dictonaries,months, fishes
Популярно: Английский язык
-
12345TEREX01.06.2020 10:53
-
kisel201416.06.2022 13:33
-
Юлиана9563102.03.2023 18:42
-
teeqo77709.02.2021 07:27
-
ННеетт10.02.2020 22:24
-
sona27216.03.2021 14:09
-
Likamm01.12.2022 22:29
-
Kotja699603.11.2021 04:55
-
ekaterinah0503.04.2021 08:24
-
Giuz27.02.2020 18:06