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Jacole · Answer 1 · 2022-08-16T05:00:43+0000

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the position of hydrogen is controversial in periodic table because hydrogen is the only element with out neutron. it belongs to 1 st group but it is not placed there .

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Mark Van Proctor · Answer 2 · 2022-08-20T20:03:13+0000

the position of hydrogen is controversial in periodic table because hydrogen is the only element with out neutron. it belongs to 1 st group but it is not placed there .

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