user-avatar
cucnt
2 năm trước
Câu 2: Cho các kí hiệu nguyên tử sau: , , a) Xác định số lượng mỗi loại hạt (p, n, e), điện tích hạt nhân, nguyên tử khối trong mỗi nguyên tử trên. b) Viết cấu hình electron,xác định kim loại,phi kim,khí hiếm c) Cho biết chúng là nguyên tố gì (s,p,d,f).Giải thích?
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

III- Supply the correct form of the word in brackets. 1. ____________ around the world are working for a better human life . ( science) 2. Marie Curie received general _____________ in local schools . ( educate) 3. After the _____death of Pierre Curie in 1906, Marie Curie took up her husband’s position.(tragedy ) 4. Everybody shows their deepest sympathy on the _____ of the flood victims. (die) VI- Rewrite each of the these sentences so that its meaning will remain unchanged. 1. I’m too poor to help you with the money .  I am not ………………………………………………………………………… 2. The flowers were so beautiful that he bought some for his wife.  They are such ......................................................... 3. When did they start to type their report ?  How long ......................................................... ? 4. We haven’t gone to the cinema for over a year .  It’s .................................................................. 5. The students can’t hear him well because he speaks very quickly.  If …………………………………………………………………………………. 6. If Mary doesn’t try her best, she’ll fail the exam .  Unless …………………………………………………………………………….. 7. Are you going to the museum this weekend ?  Have you planned………………………………………………………………….? 8. Shall we go to Dalat this year ?  Do you consider …………………………………………………………………….. ?

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team