Group Name: Chalcogen. Element Oxygen (O), Group 16, Atomic Number 8, p-block, Mass 15.999. 8 O Oxygen 15.9994. We solved this Oxygen's atomic number crossword clue. Period Number: 2. What's in a name? Melting Point: 54.36 K (-218.79°C or -361.82°F) Boiling Point: 90.20 K (-182.95°C or -297.31°F) Density: 0.001429 grams per cubic centimeter. So for an atom to be known as an oxygen atom, it must have 8 protons. This popular publisher name is Los Angeles Times, if we say the full name. Oxygen has two allotropic forms, diatomic (O 2) and triatomic (O 3, ozone). Oxygen has an atomic number of 8. Photooxygen. Given an atomic number (Z) and mass number (A), you can find the number of protons, neutrons, and electrons in a neutral atom. Phase at Room Temperature: Gas. It is typically located as a subscript to the left of the element symbol. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. The atomic number of carbon is 6. 17778-80-2. 17O. The three atoms in the ozone molecule do not lie along a straight line. In the periodic table of elements, oxygen is a p-block element and it belongs to group 16 and period 2. After hydrogen and helium it is the third most abundant element in the universe. Atomic Number: 8. Element Classification: Non-metal. However,two other scales have been used commonly: (1) in … All Crossword lover knows that this is a free daily crossword puzzles. Its symbol is O. Group Number: 16. Oxygen (after hydrogen and helium) is the third most abundant element in the universe. For example, a lithium atom (Z=3, A=7 amu) contains three protons (found from Z), three electrons (as the number of protons is equal to the number of electrons in an atom), and four neutrons (7 – 3 = 4). More commonly, the isotope symbol already tells you the atomic number. Oxygen is atomic number 8 and atomic weight 15.999. Relative isotope-ratio measurements of oxygen in water and many other substances commonly are expressedrelative to VSMOW reference material, in which case the δ18O value of VSMOW is 0 ‰ by definition. The properties of the diatomic form suggest that six electrons bond the atoms and two electrons remain unpaired, accounting for the paramagnetism of oxygen. Molecular Formula. Monooxygen. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. 17.999 159 613(5) [0.001 87, 0.002 22] Two major sources of oxygen are air and water. For example, if an atom has 9 protons, it will no longer be oxygen, but will instead be Fluorine. For example, if the symbol is written as 14 6 C, the number "6" is listed. The atomic number is the smaller of the two numbers in the symbol. The chemical symbol for Oxygen is O. Oxygen, atomic. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. O. Synonyms. 16.999 131 757(5) [0.000 367, 0.000 400] 18O. Our team found this clue in LA Times Daily Crossword and gave the correct solution. The chemical element oxygen is a highly reactive non-metal. In gaseous appearance, it is colorless and in the liquid and solid state, it is pale blue in color. Atomic Weight: 15.9994. Classified as a nonmetal, Oxygen is a gas at room temperature. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Its atomic number is 8 and indicated by the symbol O. Are you looking for the right answer? Oxygen Oxygen is a chemical element with symbol O and atomic number 8. Atomic oxygen. As 14 6 C, the isotope symbol already tells you the number... 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