Question

hydrogen is not a metal but still it is placed in the reactivity series why ​

Answer 1

Hydrogen is not a metal but it still has the tendency to donate electrons just like metals. That is why it is placed in activity series.

Answer 2

Hydrogen is not only a metal nor a non-metal

It shows properties of both metals and non-metals

It resemble a metal as it contains only one electron in its valence shell and can form compounds similar to that of a metal

So it is placed in the reactivity series.

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