Identify the correct order of elements a...

Identify the correct order of elements according to their metallic character.

`B gt AI gt Mg gt K`

`AI gt Mg gt B gt K`

`Mg gt Ai gt K gt B`

`K gt Mg gt AI gt B`

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The correct Answer is:

Reactivity of metals decreases as we move from left to right in a period (Reactivity Series).
`K gt Mg gt AI gt B`.

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