Question

why should metal are highly reactivate

Answer 1

WHY METAL ARE HIGHLY REACTIVE??

Answer-- The alkali metals, found in group 1 of the periodic table (formerly known as group IA), are very reactive metals that do not occur freely in nature. Thesemetals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements.

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Answer 2

HOLLA DEAR!!!.
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For the metals, this means the outermost electrons becomes further away from the positively-charged nucleus. These electrons are easier to remove, so the atoms readily form chemical bonds. In other words, as you increase the size of atoms of metals in a group, their reactivity also increases.
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