Which of the following lists all of the physical properties of phosphoro us atom only? I. It is a yellow solid at room temperature. II. It is soluble in carbon disulfide. III. It reacts with hydrogen when heated. IV. Its density is 2.97g/cubic centimeter V. It melts at 112^circ C

The correct answer is:<br /><br />IV. Its density is $2.97g/cubic$ centimeter<br />V. It melts at $112^{\circ }C$<br /><br />Explanation:<br />Phosphorus is a with the symbol P and atomic number 15. It is a non-metal that exists in several different forms, but the most common is white phosphorus, which is a yellow solid at room temperature. It is insoluble in carbon disulfide and does not react with hydrogen when heated. The density of phosphorus varies depending on the form, but white phosphorus has a density of approximately $1.82g/cubic$ centimeter. The melting point of white phosphorus is $44.1^{\circ }C$. Therefore, the only physical properties listed that are specific to a phosphorus atom are its density and melting point.