Hydrogen can gain one electron to reach a stable electron configuration. Why isn't hydrogen placed in group 7A with the other elements that share this behavior?
2006-11-16 08:24:06 · 7 answers · asked by E 2 in Science & Mathematics ➔ Chemistry
Because, it only has one electron on its outermost shell. and thus is placed with group 1 atoms (which also have one electron on thier outermost 'shell')
2006-11-16 08:26:28 · answer #1 · answered by prof. Jack 3 · 1⤊ 2⤋
It's because Hydrogen is considered to be an exception, when classifying the elements. Although it may have the same characteristics as those elements that you would find in group 7A, it is very reactive, perhaps the most reactive of the elements, just like the elements in the first column.Therefore, having more in common with group1.
Hope this answers your question!
2006-11-16 16:37:23 · answer #2 · answered by SashMarie 2 · 0⤊ 0⤋
it is because Hydrogen does not share they same charaterticts as group 17 do. Since the Group 17 contains certian traits that hydrogen does not have and hence Hydrogen is in it own group even tho its above litium its no really in that group
2006-11-16 16:28:49 · answer #3 · answered by gordon_benbow 4 · 0⤊ 1⤋
because it behaves more like the group 1 metals because it only has 1 electron in it's valence shell
2006-11-16 17:21:49 · answer #4 · answered by shiara_blade 6 · 0⤊ 0⤋
Hydrogen can only absorb an electron when it's in a ionized state which means it is not in it's natural state. In it's in a neutral state it has one electron.
2006-11-16 16:27:59 · answer #5 · answered by Gene 7 · 0⤊ 2⤋
Actually, on most periodic tables these days, it is placed at both groups I and VII.
2006-11-16 16:29:23 · answer #6 · answered by James Kerry 1 · 1⤊ 0⤋
That, and hydrogen doesn't gain electrons, it loses them.
2006-11-16 16:27:38 · answer #7 · answered by togashiyokuni2001 6 · 0⤊ 2⤋