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LUYỆN TẬP: NGUYÊN TỬ Câu 1: Trong nguyên tử một nguyên tố A có tổng số các loại hạt là 58. Biết số hạt prôtn ít hơn số hạt notron là 1 hạt. Tính số khối của nguyên tử A. Câu 2: Tổng các hạt cơ bản trong một nguyên tử là 155 hạt. Trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 33 hạt. Xác định số hạt proton, notron và electron trong nguyên tử trên. Câu 3: Tổng các hạt cơ bản trong một nguyên tử là 82 hạt. Trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 22 hạt. Xác định số khối của nguyên tử trên. Câu 4: Ngtử của nguyên tố Y được cấu tạo bởi 36 hạt .Trong hạt nhân, hạt mang điện bằng số hạt không mang điện. Tính số hạt proton, notron và electron trong Y. Câu 5: Nguyên tử của nguyên tố X có tổng số hạt cơ bản là 49, trong đó số hạt không mang điện bằng 53,125% số hạt mang điện. Xác định điện tích hạt nhân của X. Câu 6: Nguyên tử nguyên tố X có tổng số hạt cơ bản 36 hạt, trong đó số hạt mang điện gấp hai lần số hạt không mang điện. Tính số hạt proton trong X. Câu 7: Nguyên tử của một nguyên tố có 122 hạt p,n,e. Số hạt mang điện trong nhân ít hơn số hạt không mang điện là 11 hạt. Tính số khối của nguyên tử trên. Mọi người giúp mình 7 câu này với

II. Read the following text and do the tasks below. QUANG BA FLOWER MARKET If you are a flower lover, you must know about the Quang Ba Flower Market. It is considered one of the biggest night flower markets in Tay Ho District, Hanoi. Flowers here are transported from all over the capital neighborhoods such as Dong Anh, Tay Tuu, Gia Lam. Therefore, visitors will be fascinated by the stalls of various kinds of colorful flowers. The market is often busiest at night from 1 to 3 a.m. when Hanoi has already sunk into sleep. Although the market takes place at an extraordinary time, many people still flock there to buy flowers or take photos, especially on Tet, Teachers' Day, Women's Day, etc. Besides, the market is also famous for reasonable prices. Coming to Quang Ba Flower Market, you can easily buy your favorite flowers at a lower price than in other flower shops or from vendors on Hanoi streets. Therefore, it is not an exaggeration to say that Quang Ba Flower Market is one of the must-try experiences in Hanoi. Task 1. Decide whether each sentence is True (T) or False (F). 1. Quang Ba is an antique market. 2. It's located in Tay Ho District, Hanoi. 3. There are a few kinds of flowers available there. 4. Flowers in Quang Ba market are expensive. 5. People can buy or take photos of flowers in the market. Your answer: 1. 2. 3. 4. 5. Task 2. Answer the following questions. 1. Where are the flowers in Quang Ba Market from? ___________________________________________________________________________ 2. When is the busiest time in the market? ___________________________________________________________________________ 3. Are the prices low or expensive? ___________________________________________________________________________ 4. Where else can you buy some flowers from? ___________________________________________________________________________ 5. Is Quang Ba Market a must-visit place in Hanoi? Giáo Viên Chuyên Anh - Thầ y Bùi Văn Vinh - 0988.333.599 5 ___________________________________________________________________________ PART E. WRITING I. Rewrite the following sentences based on the words in brackets. 1. I will go shopping to buy some new furniture tomorrow.(do) ___________________________________________________________________________ 2. Who looks after your dogs when you are away? (of) ___________________________________________________________________________ 3. Going hiking alone is dangerous. (It) ___________________________________________________________________________ 4. It rained heavily yesterday. I couldn’t come to class on time. (because) ___________________________________________________________________________ 5. How often do you clean up your house? (tidy) ___________________________________________________________________________ II. Complete each second sentence so that it has a similar meaning to the first sentence. 1. We should recycle more to protect the environment. => We had__________________________________________________________________. 2. Your neighbourhood is peaceful than mine. => My neigbourhood_________________________________________________________. 3. It’s unnecessary for you to submit your assignment today. => You don’t________________________________________________________________. 4. It will rain. We will cancel the football match. => If_______________________________________________________________________. 5. In my countryside, there are a lot of crystal-clear lakes. => My countryside___________________________________________________________. III. Reorder the words/ phrases to make complete sentences. 1. member / to / up / The / Club. / sign / to / Music / the / become / of / a / students / have ___________________________________________________________________________ ___________________________________________________________________________ 2. school. / our / Opening / We / are / ceremony / excited / about / the / of / new ___________________________________________________________________________ ___________________________________________________________________________ 3. Remember / take / get / case / lost. / to / in / compass / a / you / with / you ___________________________________________________________________________ ___________________________________________________________________________ 4. student / School. / best / friend / a / International / is / Vietnam / My / Australia / at ___________________________________________________________________________ ___________________________________________________________________________ 5. rubbish / Year's / New / the / throw / on / You / Day. / shouldn't ___________________________________________________________________________

PART C. DIALOG COMPLETION Circle the sentence that best completes each of the following exchanges. 1. Kim: “What is your favourite hobby?” Giáo Viên Chuyên Anh - Thầ y Bùi Văn Vinh - 0988.333.599 3 Jane: “___________” A. What do you mean? B. I love knitting. C. I like cats so much. D. It’s my dog. 2. Ann: “___________” Jack: “ You are welcome.” A. Thank you for helping me with my homework. B. Can you open the door, please? C. Are you alright? D. Don’t mention it. 3. Lucy: “Why don’t we go skiing this weekend?” Tom: “________________” A. No, we don’t. B. Because I don’t like it. C. That’s a good idea. D. Are you sure? 4. Tony: “ How was your last vacation?” Phil: “_______________________” A. I went to Phu Quoc. B. I went there by plane. C. It was fantastic. I visited many beautiful places. D. I stayed in a hotel. 5. Mandy: “________________” Henry: “ I couldn’t agree with you more. It’s always crowded and expensive.” A. Do you like travelling? B. Is travelling expensive? C. Where did you travel last summer? D. I really don’t like travelling in peak season. PART D. READING I. Choose the most suitable word for each space. VOLLEYBALL Volleyball is a type of ball sport which is played with hands and arms. It is also a collective, competitive sports game that can be played (1)________and outdoors. It was invented by a USA Director of Physical Education, William Morgan, (2)_________1895 under the name Mignonette. (3)________, some spectators (fans, supporters) and other observers commented on the unsuitable name because the ball flies or volleys. Therefore, from that time and fourth, it started (4)______the new name" Volleyball." The team (5)_______of six players in each who are separated by a (6)______in a rectangular court (ground), which measures 18 meters long by 9 meters (7)_______. In addition, the game begins by coin tossing (flipping or "heads or tails") to choose which team takes the ball and starts serving. It is important (8)______that the opposite team will rotate in a clockwise direction (9)______a team loses the serving point. Besides, there is no specific time in each set of 5, in which they should score 25 points to win a set (except the fifth set, which includes 15 points) and three sets to (10)________a match. Giáo Viên Chuyên Anh - Thầ y Bùi Văn Vinh - 0988.333.599 4 1. A. indoor B. indoors C. inside D. within 2. A. on B. at C. in D. from 3. A. However B. Therefore C. Although D. But 4. A. using B. calling C. giving D. taking 5. A. contains B. includes C. consists D. holds 6. A. net B. cloth C. rope D. pole 7. A. widen B. wide C. width D. wider 8. A. to note B. note C. noting D. notes 9. A. unless B. in case C. whether D. if 10. A. gain B. lose C. win D. miss

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