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Chem homework, help please?

When Magnesium combines with Chlorine, what will be the ionic bond?

ClMg2


MgCl2


Mg2Cl2


MgCl

When Lithium combines with Nitrogen, what will be the ionic bond?

LiN


LiN3


Li3N


Li3N3

When Aluminum combines with Oxygen, what will be the ionic bond?

AlO


Al3O


Al2O3


Al2O2


Strontium reacts with a certain element to form compound with the general formula SrX. What would be the most likely formula for the compound formed between Potassium and Element X?


K2X

KX2

K2X3

K2X2

Respuesta :

aalexa0620ozj4c4
For the first Q: MgCl2 because Mg is in group two and therefore needs 2 extra electrons to fill its outer shell. Likewise Cl is in group 7 and only needs one extra electron so there have to be two chlorine atoms for one magnesium atom to ensure that both the Mg and the two Cl atoms have full outer shells.

Q2: Li3N let’s see if you were listening above ;)

Q3: Al2O3

Q4: K2X

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