Answer: False.
Explanation: While many ionic compounds are solids at room temperature, not all of them are. Some ionic compounds can be liquids or even gases under certain conditions. Similarly, covalent compounds can exist in all three states of matter: solid, liquid, and gas. For example, water (H2O) is a covalent compound that is a liquid at room temperature, while carbon dioxide (CO2) is a covalent compound that is a gas at room temperature. Therefore, the statement that all ionic compounds are solids and all covalent compounds are liquids or gases is not accurate.