2007-06-23 15:23:44 · 7 answers · asked by aneesha.gupta 1 in Science & Mathematics ➔ Chemistry
There are versions of the Periodic Table where Hydrogen is seperated from Group 1, since it is not a metal.
In other Periodic Tables, Hydrogen is listed both on the left side and on the right, because it can have a valence of +1 and -1.
So in summary, it is on the far left side as a convenience of printing. Nothing more.
2007-06-23 15:31:13 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
I think also it is because under extreme pressures (on the surface of Jupiter for example) hydrogen becomes a metal.
Also, it is because the elements at the extreme left side of the periodic table have only one valence electron that they can share.
It can also appear in category VII as it needs only one electron to fill its valence shell. Anything heavier than Helium requires 8 electrons to fill the valence shell.
2007-06-23 22:31:53 · answer #2 · answered by Foxfire 4 · 0⤊ 1⤋
That is because it's atomic number is 1 cuz it has one proton and electron in its stable state. And so, as the periodic table is set up by atomic numbers and does not have rigid boundaries on metal non-metal areas, H is put on that side.
2007-06-23 23:29:23 · answer #3 · answered by splintercellgod17 2 · 0⤊ 0⤋
The elements are grouped in columns that have roughly the same properties. The elements in the first columns tend to become +1 ions when they form ionic bonds.
2007-06-23 22:27:14 · answer #4 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
Hydrogen can act like a metal and a non-metal.
2007-06-23 22:26:30 · answer #5 · answered by Your Best Fiend 6 · 0⤊ 1⤋
because of its valence which is 1+ which means that it has 1 electron on its last orbital
2007-06-23 22:34:14 · answer #6 · answered by aisham00 1 · 0⤊ 0⤋
it can give out electrons and accepts electrons which is called electrofilic
2007-06-24 00:22:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋