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i don't know whether there exists Alo,all i study so far is Al2O3
both MgO and Al2O3 are ionic compouds. Al3+ is smaller than Mg2+(due to higher proton charge thus attracts the electrons closer),thus the ionic bonds in Al2O3 is greater thus it is harder.

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Q: Is hardness of MgO is greater than Alo?
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Related questions

Is NaCl has greater lattice energy than MgO?

No, MgO has a higher lattice energy than NaCl. This is because Mg2+ and O2- ions have a greater charge than Na+ and Cl- ions, leading to stronger electrostatic forces of attraction in MgO.


Is dolomitic limestone same as agricultural limestone or horticultural hydrated limestone?

dolomitic limestone is different from agricultural or hydrated limestone the difference is in the MgO content and hardness Dolomitic Limestone is harder than both and its MgO content is higher. The CaO is lower in Dolomitic limestone and High in the later.


Is mgO a covalent bond?

No. It is ionic because the electronegativity difference is greater than 1.7 (2.3).


Is MgO a polar covalent bond?

No, MgO forms an ionic bond because magnesium (Mg) loses electrons to oxygen (O), resulting in the formation of Mg2+ cations and O2- anions. This complete transfer of electrons creates an electrostatic attraction between the ions, making MgO an ionic compound.


What one has a higher mass percent of magnesium MgO or Mg3N2?

Magnesium nitride (Mg3N2) has a higher percentage composition of magnesium than magnesium oxide (MgO) does. The percentage composition of magnesium in magnesium nitride is 72.2% and the percentage composition of magnesium in magnesium oxide is 60.3%.


What are some Common uses for MgO?

What is Mgo used for? MDO is D2, Diesel, Buy MgO?


How many moles are in 106 grams of MgO?

To determine the number of moles in 106 grams of MgO, you need to divide the given mass by the molar mass of MgO. The molar mass of MgO is 40.3 g/mol (24.3 g/mol for Mg + 16 g/mol for O). Thus, 106 g / 40.3 g/mol = approximately 2.63 moles of MgO.


How many moles are present in 1g of MgO?

2 Mg(OH)2 have 10 atoms.


Is Mgo a compound or element?

MgO is a compound because it has more than one type of element in it, magnesium and oxygen.


Is MgO a ionic compound?

No. MgO is a compound called magnesium oxide. It is composed of two elements: magnesium and oxygen.Hint: if the chemical formula contains more than one capital latter than the substance is not an element.


How many atoms MgO?

there are two atoms in the chemical MgO


Is MgO an element or a compound?

MgO is a compound because it is composed of the elements magnesium (Mg) and oxygen (O) bonded together in a fixed ratio. It is not a pure element itself, but a chemical combination of different elements.