1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4,-4 | 7N +5,-3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4,-4 | 15P +5,-3 | 16S | 17Cl +7,-1 | 18Ar |
九年级化学解答题中等难度题
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4 -4 | 7N +5 -3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4 -4 | 15P +5 -3 | 16S | 17Cl +7 -1 | 18Ar |
九年级化学填空题中等难度题查看答案及解析
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4,-4 | 7N +5,-3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4,-4 | 15P +5,-3 | 16S | 17Cl +7,-1 | 18Ar |
九年级化学解答题中等难度题查看答案及解析
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4,-4 | 7N +5,-3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4,-4 | 15P | 16S +6,-2 | 17Cl +7,-1 | 18Ar |
九年级化学解答题中等难度题查看答案及解析
九年级化学解答题中等难度题查看答案及解析
九年级化学解答题中等难度题查看答案及解析
九年级化学解答题中等难度题查看答案及解析
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4-4 | 7N +5-3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4-4 | 15P | 16S +6-2 | 17Cl +7-1 | 18Ar |
九年级化学解答题中等难度题查看答案及解析
1 H +1 | 2 He | ||||||
3 Li +1 | 4 Be +2 | 5 B +3 | 6 C +4-4 | 7 N +5-3 | 8 O -2 | 9 F -1 | 10 Ne |
11 Na +1 | 12 Mg +2 | 13 Al +3 | 14 Si +4-4 | 15 P +5-3 | 16 S | 17 Cl +7-1 | 18 Ar |
九年级化学解答题中等难度题查看答案及解析
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4 -4 | 7N +5 -3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4 -4 | 15P | 16S +6 -2 | 17Cl +7 -1 | 18Ar |
九年级化学填空题中等难度题查看答案及解析
1H +1 | 2He | ||||||
3Li +1 | 4Be +2 | 5B +3 | 6C +4,-4 | 7N +5,-3 | 8O -2 | 9F -1 | 10Ne |
11Na +1 | 12Mg +2 | 13Al +3 | 14Si +4,-4 | 15P | 16S +6,-2 | 17Cl +7,-1 | 18Ar |
九年级化学解答题中等难度题查看答案及解析