Question

Identify the property that hydrogen (H) and alkali metals (M) have in common.

Hydrogen forms  H+ and alkali metal forms a M− ion.

Both can combine with halogens to form halides (HX and MX).

Both have valency 2.

Both of them have low ionisation energy.

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Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

hydrogen forms h+ ...... is the answer