Hydrogen is a metal or nonmetal
if so why it is in the metal reactivity seresis
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position of hydrogen in modern periodic table is not determined..
it behaves as alkali metals and halogens both.
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Answer:
Hydrogen is a non metal.
Explanation:
In the periodic table, hydrogen is placed is the first row just before inert gas Helium. Because it has one electron in its valence shell, it shows reactivity that resembles electropositive metals (lose an electron and become H+) and reactivity that resembles electronegative non-metals (gain an electron and become H-). Depending on what it reacts with, hydrogen can form an acidic substance that releases H+ or protons (e.g. HCl) or a basic substance that releases H- or hydride ion (e.g. LiH).
This is the reason hydrogen is placed in the reactivity series of metals.
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