user-avatar
Hieule
2 năm trước
nguyên tử r có tổng số hạt nhân các loại là 115. Số hạt mang điện nhìu hơn số hạt khong mang điện là 25. Tính nguyên tử khối của R
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

CAN GAP,ai lm cx cho 5 sao 1. What is the cause ………………… the plane crash? 2. Who will take charge ………………… the office when Mr. Ellis is away? 3. This city has made great progress ………………… improving its public school. 4. It is time we put an end ………………… this injustice. 5. George seems to be an exception ………………… the rule that an only child is selfish and spoiled. 6. She made a deep impression ………………… him. 7. Mr. Forrest felt that he had to make a choice ………………… Joe and Peter for the new job. 8. What is the matter ………………… Mary today? She looks terrible. 9. I have great faith ………………… the United Nations. 10. Walt Whitman had a great deal of influence ………………… the writing of later poets

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