元素代号 | W | R | X | Y | Z | Q | M |
原子半径/nm | 0.037 | 0.186 | 0.074 | 0.075 | 0.077 | 0.110 | 0.160 |
主要化合价 | +1 | +1 | -2 | -3,+5 | +2,+4 | -3,+5 | +2 |
a | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | f | y | h | i | |
| b | | | | | | | | | | | e | | | | j | |
c | | | | | | | d | | | | g | | l | | | | |
| | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | |
A.H216O、D216O、H218O、D218O互为同素异形体 |
B.有单质生成的反应一定是氧化还原反应 |
C.HCl的相对分子质量大于HF,所以HCl的沸点高于HF |
D.电子层结构相同的不同离子,其半径随核电荷数的增大而减小 |
© 2017-2019 超级试练试题库,All Rights Reserved.