题型：填空题 题类：常考题 难易度：普通
海南省海口市美兰区2019-2020学年九年级上学期化学期中考试试卷
|
族 周期 |
ⅠA |
O |
||||||
|
1 |
1 H 1.008 |
ⅡA |
ⅢA |
ⅣA |
ⅤA |
ⅥA |
ⅦA |
2 He 4.003 |
|
2 |
3 Li 6.941 |
4 Be 9.01 |
5 B 10.811 |
6 C 12.010 |
7 N 14.0067 |
8 O 15.999 |
9 F 18.998 |
10 Ne 20.179 |
|
3 |
11 Na 22.989 |
12 Mg 24.305 |
13 Al 26.981 |
14 Si 28.085 |
15 P 30.973 |
16 S 32.066 |
17 Cl 35.452 |
18 Ar 39.948 |
试题篮
