What is the difference between metallic and nonmetallic oxides

Both alkali and alkaline earth metal oxides form hydroxides when reacted with water. Therefore, they are basic compounds. D block elements form different oxides depending on the oxidation state.

Nonmetal oxides are oxide compounds formed by nonmetal elements. Most p block elements are nonmetals. They form various oxide compounds. Nonmetal oxides are covalent compounds since they share electrons with oxygen atoms to form oxide molecules. Most nonmetal oxides give acids after reacting with water.

Therefore, nonmetal oxides are acidic compounds. Nonmetal oxides react with bases to form salts. Figure 2: Some Reactions of Nonmetals with Oxygen. Nonmetal oxides can form oxyacids. Oxyacids yield hydronium ions in aqueous solutions. There are two types of acidic oxides:. Metal Oxides: Metal oxides are chemical compounds containing a metal and one or more oxygen atoms.

Non Metal Oxides: Nonmetal oxides are oxide compounds formed by nonmetal elements. Metal Oxides: Metal oxide are basic compounds.

Non Metal Oxides: Nonmetal oxides are acidic compounds. What are Metal Oxides 3. What are Nonmetal Oxides 4. Metal oxides are inorganic chemical compounds containing metals bound essentially with oxygen atoms.

In these compounds, oxygen is essentially the anion of the compound having the -2 oxidation state. Therefore, metal is the cation of the compound. The metals that form oxides are in the alkali metal group group 1 elements , alkaline earth metals group 2 elements and d block elements including transition metals. They form an ionic oxide, meaning, the oxide compounds they form have an ionic nature. But some chemical elements form oxides with a covalent nature, especially the chemical elements showing higher oxidation states.

Most of the times, metal oxides are crystalline solids and are often basic compounds. Therefore, they can react with water to give an alkaline solution. Moreover, they can react with acids to form salts via neutralization reactions. The number of oxygen atoms in the compounds depends on the oxidation state of the metal. They react with oxygen to form sulfur dioxide and carbon dioxide.

These compounds are both gases present in the air and which dissolve in rain water, making it acidic.

Some oxides do not dissolve in water, so would not affect the colour of an indicator added to the water. The element thallium forms an oxide, Tl 2 O. Thallium oxide does not dissolve in water, but does react with acids to form thallium salts. Is thallium a metal or a non-metal? Explain your answer. Thallium is a metal. This is because thallium oxide reacts with acids, so must be a base. Only metals form oxides that are bases. Metals are also more likely to corrode than non-metals.

This means that non-metals are less likely to react with water or acids than metals are. Properties of metal and non-metal elements Metals are placed on the left-hand side of the periodic table , and non-metals on the right.