Question

Why the Sodium (Na) metal gives yellow flame ?​

Answer 1

when sodium metal or its salt is heated in Bunsen flame , its valence shell electron is excited to higher energy levels of absorption of energy . When the excited electron returns to the ground state , it emits the extra energy in the yellow region of the electromagnetic spectrum .

Answer 2

The ionization enthalpy of sodium is low . Therefore , when sodium metal or its salt is heated in Bunsen flame , its valence shell electron is excited to higher energy levels of absorption of energy . Therefore , sodium imparts yellow colour to the flame .

Explanation:

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