What is the physical state of oxygen at room temperature? Chemistry Matter Elements 1 Answer tcw1 Sep 11, 2016 Gas Explanation: Oxygen (#O_2#) is a gas at room temperature (273 K). It is a liquid at 90 K and a solid at 54 K. Answer link Related questions What periodic table elements are radioactive? How can the periodic table be used to predict the properties of the elements? How can elements have different isotopes? How can elements be broken down? How can elements properties be predicted? What is a chemical element? What element in the fourth period of the periodic table has 5 valence electrons? How are chemical elements diffrent from chemical compounds? What does organic chemistry study? How do elements change from left to right in the periodic tabale? See all questions in Elements Impact of this question 15036 views around the world You can reuse this answer Creative Commons License