Why hydrogen molecule is more stable than oxygen molecule?

<p>The stability of the bond depends on various bond parameters including the bond length and bond energy. In general the shorter the bond, the lesser the bond energy will be, this leads to the stable molecule.</p><p>Since the bond order and energy of hydrogen molecule is lesser than the oxygen molecule, it is be more stable.</p><table style="width: 877px;" width="877"><tbody><tr><th style="width: 127.5px;"><p><strong>Molecule</strong></p></th><th style="width: 159.236px;"><p><strong>Bond Order</strong></p></th><th style="width: 244.264px;"><p><strong>Bond Length (pm)</strong></p></th><th style="width: 290.444px;"><p><strong>Bond Energy (kJ/mol)</strong></p></th></tr><tr><td style="width: 127.5px;"><span contenteditable="false"><math><msub><mrow><mrow><mi mathvariant="normal">H</mi></mrow></mrow><mrow><mrow><mn>2</mn></mrow></mrow></msub></math></span></td><td style="width: 159.236px;"><p>1</p></td><td style="width: 244.264px;"><p>74</p></td><td style="width: 290.444px;"><p>436</p></td></tr><tr><td style="width: 127.5px;"><span contenteditable="false"><math><msub><mrow><mrow><mi mathvariant="normal">O</mi></mrow></mrow><mrow><mrow><mn>2</mn></mrow></mrow></msub></math></span></td><td style="width: 159.236px;"><p>2</p></td><td style="width: 244.264px;"><p>121</p></td><td style="width: 290.444px;"><p>498</p></td></tr></tbody></table>

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