Which noble gases is closest to magnesium? On the periodic table? What must happen if a magnesium atom for it to have an electron arrangement similar to that of a noble gas?

Neon and loose electrons

Explanation:

Magnesium has an electron configuration of 2e 8e 2e, and Neon is 2e,8e. For Mg to have a similar electron arrangement it must loose its two valence electrons and make it an ion.

Noble neon gas is the closest.

Explanation:

noble Neon  gas

The Magnesium would have to lose two electrons

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explanation:

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