pls explain clearly.
2006-12-26 01:13:42 · 5 answers · asked by poornima_durairaj 2 in Science & Mathematics ➔ Chemistry
Who Said???
Hydrogen is the first element of the periodic table.
Its placed along with the s-block element.
2006-12-26 01:18:50 · answer #1 · answered by Som™ 6 · 1⤊ 0⤋
Well this is a tough one - its got one valence electron so logically it should be there although as Hydrogen its a bit special and not exactly like the rest in its group - in many periodic table its placed separately and in the middle and above the others. Helium at least belongs with the other noble gases.
2006-12-26 09:48:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Hydrogen has a mysterious link with the Periodic Table. It is placed in many places in diff. tables.
It can be kept in Group I since it has only 1 valence electron but cant since it isnt a metal. It can be kept in Group VII since it can lose one electron with cant bcuz it isnt a halogen.
Therefore, in many cases, it is just placed sumwhere above of the D-Block Elements
2006-12-26 10:30:54 · answer #3 · answered by Demonic|Resurrection 2 · 0⤊ 0⤋
of course hydrogen is not placed with d-block elements. In fact, it is placed on the top of the periodic table. It is not associated with any particular block, though it is placed with s-bock elements.
2006-12-26 11:08:42 · answer #4 · answered by AAK 2 · 0⤊ 0⤋
million dollar question...probabaly cuz its a non metal with valelncy 1
2006-12-26 09:17:08 · answer #5 · answered by Anonymous · 0⤊ 1⤋