3. Reading text and fill in the blanks nucleus, shell, atom,
shell, atom, neutral, negative, electrons, orbital, positive
neutron,
protons,

Scientists say that the smallest particle of substances are called Atom means indivisible
derived from atomos in Greek language because of its very small size. Atom has two parts, nucleus
and
is located in the center of atom and electrons move around nucleus with high
speed.Scientists believed that atoms were indivisible up to 20th century. Today we know that atoms
have subatomic particles, called
and electrons
Protons are
particles found in the nucleus of an atom, and shown as "p". Each element has
certain number of protons which differ from other elements. Neutrons are particles found in
the nucleus of an atom, and shown as "n". Electrons are particles that move around the
nucleus of an atom, and shown as “e". Neutral atoms have the equal number of protons and
electrons. Electrons are rotating in certain places called
energy level or shell. The electrons
located in the outermost shell of atoms are called
have the same number of
protons but different number of neutrons.They have similar chemical properties but different
physical properties.​

Jackie chan born 7 april 1954 in hong kong. since childhood, studied music – she studied at the opera school. and besides, a big boy hobby was kung fu. for the first time to star in a movie in his biography of jackie chan started as a stuntman. he took part in scenes that required stunt. over time, began to play a larger role.so in the 1970's came the film "in the claws of the eagle" (1973), "the young tiger" (1973), "new fist of fury", "shaolin wooden men" (1976). jackie chan as actor and director in movies manages to combine comic situations with excellent skill of kung fu and stunts. in the 1990's, jackie chan in his biography begins to act in hollywood films. in 1995 came the movie "rumble in the bronx" with his participation, which was extremely successful and made the actor even more famous. among other cult films of jackie chan: "police story", "drunken master", "thunderbolt", "shanghai noon".also throughout the biography of jackie chan traced vocal talent. jackie chan often he sings songs for his films (but for the world views them replaced). the singer has released 20 albums, performs songs in four languages. married to actress lin feng jiao, has a daughter etta ou chok lam. родился джеки чан 7 апреля 1954 года в гонконге. с детства занимался музыкой – учился в школе оперы. а кроме этого большим увлечением мальчика было кун-фу. впервые сниматься в кино в своей биографии джеки чан начал как каскадер. он принимал участие в массовках, где требовались трюки. со временем стал играть более крупные роли.так в 1970-х годах вышли фильмы «в когтях орла» (1973), «молодой тигр» (1973), «новый кулак ярости», «деревянные люди шаолиня» (1976). джеки чану как актеру и режиссеру удается в фильмах объединить комические ситуации с превосходным мастерством кун-фу и трюками. в 1990-х годах джеки чан в своей биографии начинает сниматься в голливудских фильмах. в 1995 году вышел фильм «разборка в бронксе» с его участием, который оказался чрезвычайно успешным и сделал актера еще более известным. среди других культовых фильмов джеки чана: «полицейская », «пьяный мастер», «громобой», «шанхайский полдень».также на протяжении всей биографии джеки чана прослеживается вокальный талант. джеки чан зачастую сам исполняет песни к своим фильмам (но для мирового представления их чаще заменяют). певец выпустил 20 альбомов, исполняет песни на четырех языках. женат на актрисе линь фэн цзяо, воспитывает дочь этту оу чок лам.

1.      Have you already been at the seaside with your family? – Yes, we have already been at  the seaside with my family.
2.      Has your brother sent you an invitation to the party? – No, he hasn`t sent me an invitation to the party.
3.      How many times have you been at your mother` house? — I have been at my mother` house only twice.
4.      Have your father ever been in car accidents? — Unfortunately, he has already been in car accidents three times.
5.      Have your family always interested in politics? – No, my family has never interested in politics.