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hydrogen should be in 7a group because the characteristics are more in it. but they are keeping in 1a group.Why?

V.Vamsi Krishna , 10 Years ago
Grade 10
anser 1 Answers
Pankaj

Last Activity: 10 Years ago

Hello Student
Hydrogen is the first element of periodic table but its position in the periodic table has been a subject of discussion for the past few years due to its similarities with both halogens and alkali metals. A proper position could not be assigned to hydrogen either in the Mendeleev’s periodic table or Modern periodic table because of the following reason: In some properties, it resembles alkali metals and in some properties it resembles halogens. So hydrogen can be placed both in group 1 and group 17 with alkali metals and halogen respectively.
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