Question

Give the names and symbols of $2$ non -metals which are solid.

Answer 1

Non-metals are elements that form negative ions by accepting or gaining electrons. They generally have more than four or more electrons in their outermost shell. Non -metals exist mostly in two states that are gas and solid. They have a wide range of properties as compared to metals.

Complete step by step answer:
We know that non-metals are those which lack all the metallic attributes. They are mostly gases and sometimes liquid. Some of them are even solid at room temperature. Sulphur and phosphorus are two such non-metals which are found in a solid-state at room temperature. Sulphur forms a cyclo octa atomic molecule with a chemical formula ${S_8}$. It is having a very giant structure. Phosphorus is another non-metal which is present in many allotropic forms. Among them, white phosphorus is the most common one. It is denoted by the symbol ${P_4}$.So the names and symbols of two non-metals which are solid are Phosphorus having symbol S and sulphur having symbol P.

Note: Other than phosphorus and sulphur being a nonmetal as a solid, bromine is one such non-metal which is liquid at room temperature. They are having high ionization enthalpy and electronegativity. The atoms of non-metals are smaller than that of metals. The properties of non -metals include them being insulators or poor conductors of electricity. Also, they are poor conductors of heat and have a very low density. They form acidic oxides and are good oxidizing agents.