SELECT * FROM question_mgmt as q WHERE id=2840 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=50 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th chemistry Hydrogen why does hydrogen occur in a diatomic form rather

Question:

Why does hydrogen occur in a diatomic form rather than in a monoatomic form under normal conditions?

Answer:

The ionization enthalpy of hydrogen atom is very high (1312 kJ mol-1). Hence, it is very hard to remove its only electron. As a result, its tendency to exist in the monoatomic form is rather low. Instead, hydrogen forms a covalent bond with another hydrogen atom and exists as a diatomic (H2) molecule.


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