A) low ionization potential value
B) emission and absorption of energy by electron
C) high ionization potential value
D) transfer of energy
Correct Answer: B
Solution :
On heating\[Ca,Sr,Ba\]etc. elements in Bunsen's burner flame, the outermost shell electron transfers in higher shell by gaining energy. They emits energy on returning in the lower shell again. Which comes in visible light region hence gives different-different colour.
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