Nguyên tử lithium tạo nên bởi 3 proton, 4 neutron và 3 electron. Khối lượng lớp vỏ của lithium bằng khoảng bao nhiêu phần trăm khối lượng của cả nguyên tử lithium?
Câu hỏi liên quan
Một lực không đổi tác dụng vào một vật có khối lượng 2,5 kg làm vận tốc của nó tăng dần từ 2 m/s đến 6 m/s trong 2 s. Lực tác dụng vào vật có độ lớn bằng
Nhân tố nào dưới đây góp phần tạo vị thế trung tâm kinh tế hàng đầu của Liên minh châu Âu?
Miền không tô màu dưới đây biểu diễn miền nghiệm của bpt nào?
Read the following advertisement and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
KEEPING PETS – THE PERFECT COMPANION!
Are you thinking about (1) _____ a pet? Pets bring joy and companionship into our lives, making each day more exciting and (2) _____. Imagine coming home to a loyal dog or a playful cat. They are more than just animals—they are (3) _____ for you and your family.
Keeping pets requires responsibility, but the rewards are immeasurable. Choose a pet (4) _____ your lifestyle and home environment. For example, a small apartment is ideal for cats, while dogs might need more space to roam.
Remember, pets thrive (5) _____ love, care, and proper training. Taking the time to (6) _____ their needs is essential for a happy and healthy pet.
Start your journey to unconditional love with the perfect pet today!
Để khắc phục lỗi dùng từ không đúng phong cách ngôn ngữ của kiểu, loại văn bản, ta cần
Câu trả lời nào đúng và đầy đủ nhất về byte?
I/ when/ mother/ usually/ in/ having/ my/ confide/ problems.
Trên thị trường, doanh nghiệp Q nhận thấy giá của nguyên vật liệu đang có xu hướng gia tăng, nhưng hợp đồng đã kí với đối tác không thể thay đổi giá, nên doanh nghiệp đã quyết định cắt giảm một số chi phí về xử lý chất thải để giữ chi phí sản xuất sản phẩm không tăng, đảm bảo được mức lợi nhuận ban đầu. Trong trường hợp trên, doanh nghiệp Q đã làm gì để đảm bảo được mức lợi nhuận ban đầu?
- Trong không gian với hệ tọa độ Oxyz, mặt cầu tâm \({\rm{I}}(9; - 8;7)\) bán kính 16 có phương trình là
Liên minh Viễn thông Quốc tế viết tắt là gì?
Read the following advertisement and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
DISCOVER THE FUTURE OF LEARNING WITH SMARTLEARN!
Are you ready to learn in a fun and easy way? Try SmartLearn – the app that makes studying (1)________ for everyone! SmartLearn helps students of all ages learn (2)________ and improve their grades. With SmartLearn, you can study anytime, anywhere! The app offers interactive lessons in many subjects like math, science, English, and history. You can play games, watch videos, and take quizzes to remember what you learn. The lessons (3)________ by teachers are simple and enjoyable. Plus, SmartLearn is safe and family-friendly, so parents can trust it! Download the app today on your phone or tablet (4)________ free. You can try basic lessons or (5)_______ premium access for more features, like personalized study plans and expert tips. Start (6)________ with SmartLearn and see the difference. Don’t wait – get smarter today!
Sử dụng pháp luật được hiểu là công dân sử dụng đúng đắn các quyền của mình, làm những gì mà pháp luật:
Trao đổi chất và chuyển hóa năng lượng có vai trò quan trọng đối với quá trình nào?
Một sinh viên thực hiện thí nghiệm tổng hợp ethyl acetate từ ethyl alcohol và acetic acid (xúc tác acid H2SO4. Sinh viên thu được hỗn hợp Y gồm acetic acid, ethyl acetate, ethyl alcohol và chất xúc táHãy đề xuất phương pháp tách ester ra khỏi hỗn hợp trên.
Tìm mệnh đề đúng trong các mệnh đề dưới đây?
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
I was an MBA student in the USA and I lived in the university’s coed dormitory. In my culture, usually, if a woman talks to a man, it is a sign of romantic interest. (34)_____, in the first few days of school, I found it strange that so many women were talking to me and I was under the impression that some women on my dormitory floor were interested in me. To (35)__________ their politeness, I would buy them flowers or offer small gifts, as is done in my country. However, I was quite surprised to see that these same women now seemed (36)______around me. One was even quite offended and told me to leave her alone. Eventually I talked to the residence adviser on my floor to see what I was doing wrong, and he explained to me the way men and women usually interact in the USA. I was quite relieved to hear that (37)____ was wrong with me, but rather with the way I was interpreting my conversations with women. Even though I did not find the love of my life while I was in the USA, I still made many good female friends afterwards (38)______I still maintain contact.
Mark the letter A, B, C or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 23.
AI (Artificial Intelligence) is revolutionizing the medical field by providing more accurate diagnoses and personalized treatment plans. Since its development, AI has become increasingly integrated into healthcare, (18) ___________. One of the most prominent examples is its use in medical imaging, where AI-powered systems are capable of detecting diseases, like cancer, with remarkable precision.
AI systems are particularly valued for their ability to process vast amounts of data quickly, enabling doctors to focus on patient care rather than administrative tasks. These advancements have led to (19) ___________, allowing for better overall outcomes. Not only does AI reduce the potential for human error, but it also continuously improves through learning from new medical data.
Medical AI systems have also (20) ___________. By analyzing genetic information and patient histories, AI can suggest potential treatment options that may have been overlooked by human experts. Moreover, these systems often lack the information needed to recommend the best treatment, ensuring that treatments are more effective and better suited to individual needs.
Despite the many benefits, some critics argue that there are still ethical concerns about the widespread adoption of AI in healthcare. For example, (21) ___________ could lead to overreliance on machines, reducing the need for skilled medical professionals. However, proponents believe that as AI continues to evolve, the medical field will revert to traditional methods By working alongside human experts, AI has the potential to transform healthcare, making it more efficient and accessible for all.
In summary, the rise of AI in medicine is an exciting development that shows great promise. It is essential (22) ___________. As these technologies advance, doctors may struggle to trust AI in complex cases.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 29 to 33.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away.
Which of the following gives people a big boost of energy?
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer.
Why are we always pointing to Instagram as the cause of mental illness in our teenagers? It’s frustrating that abusive relationships, and the trauma they cause, are rarely mentioned in discussions about the prevalence of mental health problems in young people. Research by Women’s Aid and Cosmopolitan has found that a third of teenage girls have been in an abusive relationship. And, if that isn’t shocking enough, when the remaining two-thirds were asked further questions, it emerged that 64% of them had, in fact, experienced abusive behaviour – they just didn’t realise it was abuse.
Domestic abuse is normally associated with women cowering on the floor, as a violent husband waits to strike, or mothers covering up their black eyes with concealer before the school run. On the same day that the domestic abuse bill received its second reading in parliament, Age UK called for action to tackle domestic abuse of over-60s, whose needs it says are often overlooked by the law, policy and practice. The needs of teenagers in the heady throes of first love who are in emotionally abusive relationships also need to be recognised.
Common themes of such relationships include (though are not limited to) excessive jealousy, repeated criticism and sexual coercion. If your boyfriend or girlfriend is checking your phone, constantly asking to know your whereabouts, getting upset when you spend time away, turning up unannounced to surprise you, these are all examples of coercive control. If they never apologise in an argument and make everything your fault, tell you what you can and can’t wear, undermine you and/or publicly humiliate you under the guise of a “joke”, these again are common instances of controlling behaviour. Ditto, if they have a Jekyll/Hyde personality, make you feel like you are walking on eggshells even when things are seemingly going well, and threaten to hurt themselves if you leave. When it comes to sexual coercion and rape, examples include making you feel pressured to perform sexual acts you’re uncomfortable with, such as sending nude photos, having sex before you’re ready, being pressured to re-enact extreme sex from porn films or being told you don’t love them if you say no.
Often the victim in an abusive relationship can never quite put their finger on one thing, but the overwhelming feeling is of a general unease, feeling unsafe, defective, wrong, scared and as if you are going crazy. It’s your “yourselfness” that’s being consistently undermined, controlled and attacked by the person who claims to love you.
What does the passage mainly discuss?
Nguyễn Tuân sinh và mất năm nào?
