covalent bond

2006-12-09 12:48 am
Are all the covalent compounds formed from non-metals?

回答 (2)

2006-12-09 12:53 am
✔ 最佳答案
以F.5以下的程度就係...........
F.6&7 就仲有其他ans.
2006-12-09 1:13 am
ANS: NO
It should be metals+ non-metals


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