Задание №51572 ЕГЭ Английскому языку

Прочитайте текст и заполните пропуски A–F частями предложений, обозначенными цифрами 1–7. Одна из частей в списке 1–7 лишняя. Занесите цифры, обозначающие соответствующие части предложений, в таблицу.

Basic Atomic Structure

 The idea that everything is made of atoms was pioneered by John Dalton in a book he published in 1808. It is him A_________________ the father of atomic theory.

For almost 100 years after this, most scientists thought of atoms as solid structures, until in 1897 J.J. Thomson B_______________ contain even smaller particles called electrons. 

This discovery C________________ , but later, in 1906, Rutherford and Gieger announced that when they fired alpha particles at a thin sheet of gold foil, most of the alpha particles passed straight through it, but a few bounced back. This experiment showed that most of an atom is empty space, but there is a very small, dense nucleus in the centre. Later Rutherford discovered positively charged protons. 

It D__________________ that another particle in the nucleus, the electrically neutral neutron, was discovered by James Chadwick. Finally, in the 1930s, the modern model of the atom was in place: a dense nucleus containing protons and neutrons, with electrons orbiting near the outside of the atom. 

In reality, electrons are much further away from the nucleus than you would expect. If the nucleus was represented by a golf ball, the E_______________ three miles wide! 

Each chemical element has a set number of protons in its nucleus. For example, carbon is F__________________ per atom. In an atom, the number of electrons is the same as the number of protons. Atoms of the same element with different numbers of neutrons are called isotopes. Whatever the number of electrons, remember that most of the weight of an atom is in its nucleus, protons and neutrons.

1. discovered that atoms did

2. whole atom would be

3. was not until 1932

4. the only element with 6 protons

5. that can be considered

6. who is sometimes called

7. itself was a shock