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Nitrogen gas molecules. A Collection of Argon Atoms. Oxygen gas molecules. Diatomic Molecules. Chlorine (Cl 2 ) atomic radius = 99 pm. Hydrogen (H 2 ) atomic radius = 37 pm. Distance between nuclei. Nucleus. Fluorine (F 2 ) atomic radius = 64 pm. Bromine (Br 2 )
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Diatomic Molecules Chlorine (Cl2) atomic radius = 99 pm Hydrogen (H2) atomic radius = 37 pm Distance between nuclei Nucleus Fluorine (F2) atomic radius = 64 pm Bromine (Br2) atomic radius = 114 pm Oxygen (O2) atomic radius = 66 pm Atomic radius Iodine (I2) atomic radius = 138 pm Nitrogen (N2) atomic radius = 71 pm HOBrFINCl twins H2O2Br2F2I2N2Cl2
Diatomic Molecules Elements That Exist as Diatomic Molecules in Their Elemental Forms Element Present Elemental State at 25 oC Molecule hydrogen colorless gas H2 nitrogen colorless gas N2 oxygen pale blue gas O2 fluorine pale yellow gas F2 chlorine pale green gas Cl2 bromine reddish-brown liquid Br2 iodine lustrous, dark purple solid I2