1 decade ago. I know that aluminium ion has a charge of +3, and sodium has a charge of +1. Find out more about how we use your information in our Privacy Policy and Cookie Policy. 5 years ago. Which Would Have A Higher Melting Point, Sodium Chloride Or Aluminum Oxide? Sodium oxide reacts with some acids (such as hydrochloric acid) to form sodium chloride and water. Whether you can electrolyse molten sodium oxide depends, of course, on whether it actually melts instead of subliming or decomposing under ordinary circumstances. This explains why sodium oxide has a higher melting point than sulfur trioxide. Sodium oxide has a formula of Na 2 O. Hence, wouldn't sodium from a stronger bond with oxygen, as compared to aluminium? 0 0. lenahan. Why dose sodium oxide have a high melting point? Because there exists hydrogen bond between N2H4.... What Does High Melting Point Mean? Compare the structures of Diamond and Graphite, making references to the bonding, the shape of the structures, and location of the electrons within the structures. 5 years ago. The melting point of a material is primarily related to bond strength. The second answer is incorrect. Ionic and metalic bonds are weaker than covalent bonds. Relevance. Does Is Mean Higher Chances Of Melting Or What? 0 0. lenahan. 10 years ago. Sodium will lose an electron to form a cation and oxygen will gain 2 electrons to form anion. The alkali metal oxides M 2 O (M = Li, Na, K, Rb) crystallise in the antifluorite structure. If it sublimes, you won't get any liquid to electrolyse! Why does sodium oxide have a high melting point ? Since sodium is a metal and oxygen is a non metal, sodium oxide is an ionic species. Favorite Answer. Answer Save. The first answer is correct. There is a strong attractive force between these oppositely charged ions, which require a lot of energy to break lots of these bonds to melt the lattice structure. Sodium oxide has a formula of Na2O. Chemistry. Magnesium oxide is an ionic compound ( because it consists of a metal and a non-metal)In ionic compounds, electrons from the outer shell exchange between the at… However, other factors--such as crystal structure, atomic weight, and electron structure--can also influence the melting point. So Al2O3 has a higher melting point.... Why N2H4 Has High Boiling Point Than C2H4? Answer Save. Account for the fact that graphite conducts electricity and diamond does not. Because it is a solid ionic compound exists as the crystal lattice, such compounds have high melting points but are easily soluble in water. Explain the trends in ionisation energies across the 2nd period of the periodic table. You can change your choices at any time by visiting Your Privacy Controls. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. Relevance. How does a catalyst effect the rate of reaction? Chemical Properties of Sodium Oxide – Na 2 O. In terms of it's bonding and structure . Ionic and metalic bonds are weaker than covalent bonds. Ionic or electrostatic compounds have very strong electrostatic forces of attraction. Magnesium and aluminium oxides have melting points far too high to be able to electrolyse them in a simple lab. These ions will be arranged in an ionic lattice structure. Chemistry. Why is the melting point of aluminium oxide higher than that of sodium oxide? Since sodium is a metal and oxygen is a non metal, sodium oxide is an ionic species. ..... it is a lattice of ions held together by many strong ionic bonds Predict an equation for the reaction of a period 2 oxide with water e.g. nitrogen dioxide Sophia. 1 0. This explains why sodium oxide has a higher melting point than sulfur trioxide. Sodium oxide is an ionic compound and ionic compounds typically have extremely high melting points. Awesomeness. The first answer is correct. Sophia. 4 Answers. Yahoo is part of Verizon Media. Tungsten, rhenium, osmium, tantalum, and molybdenum are among the highest melting point metals. What are the oxidation numbers of each element in these examples: a) H2SO4 b) N2 c) NH4+. Sodium is less electronegative than aluminium. Source(s): Chemistry student, this is explanation has been simplified, do ask me for a detailed one if you need it. 2Na 2 O + 3CO 2 → 2Na 2 CO 3. Thus their bond cannot be broken easily. Have a Free Meeting with one of our hand picked tutors from the UK’s top universities. Ionic or electrostatic compounds have very strong electrostatic forces of attraction. Sodium oxide is a chemical compound with the formula Na 2 O.It is used in ceramics and glasses.The compound is the base anhydride of sodium hydroxide; when water is added to sodium oxide, NaOH is produced.. Na 2 O + H 2 O → 2 NaOH. These ions … Sodium will lose an electron to form a cation and oxygen will gain 2 electrons to form anion. 4 Answers. This is why sodium oxide has a high melting point. Materials with strong bonds between atoms will have a high melting temperature. One to one online tution can be a great way to brush up on your Chemistry knowledge. Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. Why does sodium carbonate have a high melting point? Source(s): Chemistry student, this is explanation has been simplified, do ask me for a detailed one if you need it.