THE PERIODIC LAW - раздел Иностранные языки, МЕТОДИЧНІ ВКАЗІВКИ З АНГЛІЙСЬКОЇ МОВИ
In The Eighteenth Century Many Chemists Began To Identify Ele...
In the eighteenth century many chemists began to identify elements and study their properties. A lot of attempts were made to classify them. The most outstanding classification was made by the Russian chemist Dmitry Mendeleev, who published his Periodic Table of Elements in 1869. Mendeleev noticed that if he arranged the elements in order of increasing atomic weight, definite chemical properties repeated themselves periodically. His table of the known elements was constructed with seven elements in each of the first two rows and seventeen elements in each of the next two rows. But there were several blank spots in his table of those elements, which had not been discovered at that time. Mendeleev predicted their existence basing on the observation of periodicity. He even called them ekaboron, ekaaluminum and ekasilicon. Finally, the discovery of gallium, scandium and germanium were made. Mendeleev's table revealed the fact that properties of the elements are periodic function of their atomic masses. This statement was called the Periodic Law.
Now the Periodic Law reads as follows: the physical and chemical properties of the elements are periodic functions of their atomic numbers. The elements are arranged in order of increasing atomic numbers. The value of the Periodic Table consists in the fact that chemists can predict the properties of their compounds by grouping the elements into families and knowing the trends within these families.
Національний технічний університет України... Київський Політехнічний Інститут... МЕТОДИЧНІ ВКАЗІВКИ З АНГЛІЙСЬКОЇ МОВИ...
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THE PERIODIC LAW
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Методичні вказівки
Запропоновані методичні розробки створені для студентів І курсу заочного відділення факультетів ХТФ, ІФФ, ЗФ. Даний посібник має за мету допомогти студенту-заочнику у його самостійн
Pre-reading exercises
Exercise I. Pronounce the following words and word combinations:
arrange /q 'reInG/ – пристосовувати
belong to /bI 'lON/ – бути пов’язаним з чимось
can afford /
SCIENTIFIC PROGRESS
Natural science is the main characteristic feature distinguishing the present civilization from the other civilizations in the past. From its early beginnings in the sixteenth centu
Text-based exercises
Exercise III. Fill in the correct word(s) from the list below. Use the words only once:
intellectual
feature
Grammar exercises
Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. The air around us is always under pressure.
…………………………………………………………………..…………………
MAN AND BIOSPHERE
Interrelations between man and the biosphere are of a fairly complex nature. Man, like every other living organism, depends for his life on what the biosphere provides: water, oxygen, food and shel
Text-based exercises
Exercise III. Underline the correct item and translate the sentences:
1. This dispute undertakes/assumes at once reasonableness and an importance
Grammar exercises
Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. At that time spherical joint was becoming more and more useful in the construction of glas
CLIMATIC FORECAST FOR THE 21ST CENTURY
Pollution is widely in the news nowadays and probably will be for a long time to come. Environmental problems appear in the newspapers almost daily.
According to scientific researches, the
Text-based exercises
Exercise III. Replace the words in bold with their opposites:
a). raised
1. You soon get used to the little difficulties.
Grammar exercises
Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. After I had finished the inspection of the new engine I spoke to the engin
PHYSICAL AND CHEMICAL SCIENCES
Physical science is the systematic study of the inorganic world, as distinct from the study of the organic world, which is the province of biological science. Physical science consists of four broa
Text-based exercises
Exercise III. Fill in the correct word(s) from the list below. Use the words only once:
physical
boundary
Grammar exercises
Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. We have been observing the reaction for an hour.
Text-based exercises
Exercise III. Give English equivalents for the following words and word combinations:
a) бути у чистому кольорі
………………………
Grammar exercises
Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. The answers are given instantly upon demand.
…………
Text-based exercises
Exercise III. Underline the correct item and translate the sentences:
1. He appeared at the laboratory after an absence/existence of
Grammar exercises
Exercise VI. Put the English equivalents of the Ukrainian words in brackets and translate the sentences:
1. This makes documenting programs …………….. (
CHANGES IN MATTER
There are three states of matter – solid, liquid, and gas. Each matter has its own distinct physical properties. Changes in the temperature of a particular type of matter can cause matter to change
Text-based exercises
Exercise III. Give English equivalents for the following words and word combinations:
a) електричний заряд
………
Grammar exercises
Exercise VI. Which of the following nouns are countable and which are uncountable? Give the plural of the following nouns if possible:
Список використаної літератури
1. Агабекян И.П. Английский для технических вузов. – Ростов н/Д: Феникс, 2006. – 349 с.
2. Верба Л.Г., Верба Г.В. Грамматика современного английского языка. Справочник. – К.: «Логос», 2002
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