Explain the location of hydrogen in the periodic table.
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hydrogen is normally shown at the top of the Group 1 elements in the periodic table, the term "alkaline metal" refers to the Group 1 elements from lithium downwards and not hydrogen. Hydrogen is the lightest element.
Hydrogen is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. However, it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than the other alkali metals.
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hydrogen is the first element of the periodic table as it's atomic number is one.
it has only one electron in its outermost shell.
the placement of elements in the periodic table is based on their electronic configuration.
hope it will help
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