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What is the formula for magnesium iodide?

Answer 1

Magnesium metal forms a doubly charged cation. Iodide forms a singly charged anion.

#Mg^(2+) + 2I^(-) rarr MgI_2#

Look at the Periodic Table to find out what ions these elements form. Magnesium is in Group 2, and as a metal, it must lose two electrons to take on the configuration of a Noble Gas, which is that of neon; iodine, on the other hand, must gain one electron to take on the configuration of xenon. This tendency is reflected in the ion formation.

What is potassium oxide's formula?

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Answer 2

Serenity Allen

Magnesium iodide has the formula MgI2.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.