Why did hydrogen not get a place in Mendeleev's periodic table .. ??
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This is one of the biggest drawbacks of Mandaleev's Periodic Table:
The position of hydrogen here is uncertain - It has been placed in 1A group with alkali metals, but some of the properties of hydrogen also resemble those of halogens. So, it may be placed in the group for halogens as well.
The position of hydrogen here is uncertain - It has been placed in 1A group with alkali metals, but some of the properties of hydrogen also resemble those of halogens. So, it may be placed in the group for halogens as well.
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Hydrogen had no fixed position in Mendeleev's Periodic Table because it resembles alkali metals by forming positive ions and resembles halogens by forming diatomic molecule.
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