Tag Archives: oxygen family atomic number






Physical Properties Of Oxygen Family

  PROPERTY ELEMENT O S Se Te Po Atomic number 8 16 34 52 84 Atomic mass 16.00 32.06 78.96 127.60 210 Covalent radius/pm 74 103 119 142 168 Ionic radius/pm(M2-) 140 184 198 221 230 First ionization energy kj mol-1 1314 1000 941 869 813 Second ionization energy kj mol-1 3388 2251 2045 1790

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