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What is the electron dot diagram for magnesium oxide?

Answer 1

Well, magnesium oxide is an ionic species, which we could represent as #Mg^(2+)O^(2-)#.

Elemental magnesium has 12 nuclear protons, #Z=12#. It has 2 valence electrons that are conceived to be lost when it undergoes oxidation to #Mg^(2+)#.

#MgrarrMg^(2+) + 2e^-# #(i)#

Elemental (atomic!) oxygen has 8 electrons, #Z=8#. The oxide anion thus has 10 electrons upon reduction:

#O + 2e^(-) rarr O^(2-)# #(ii)#

So #(i) + (ii)=#

#Mg(s) + 1/2O_2(g) rarr MgO(s)#

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Answer 2

Skylar Alexander

The electron dot diagram for magnesium oxide (MgO) represents magnesium with two dots on its outer shell, indicating its valence electrons, and oxygen with six dots, also representing its valence electrons.

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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.