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Why hydrogen takes place in the metal reactivity series |
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Answer» Hydrogen being a non metalis placed in the reactivity series because by loosing its one electron it can also gain a positive sign just like other metals Because it has the ability to lose its electron..... 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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