Question

Why group 2 elements are harder than alkali metals?

Answer 1

Less reactive than Group I elements. This is because it is more difficult to lose two electrons compared to losing just one electron. React with water to form alkaline solutions. ... Melting points and boiling points decrease down the group due to weaker forces of attraction between atoms

Answer 2

⏺heya friend !

✔here's your answer :-

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☣ Why group 2 elements are harder than alkali metals?

➡group 2 elements are harder than group 1 elements (alkali metals) because their outer or valence shell contains 2 elections whereas in case of group 1 elements the valence shell contains only 1 electron.
➡so the bonding of group 2 elements is stronger than group 1 elements.
➡hence they are harder than alkali metals.

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i hope it helps u !!!☺