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CGP EDU Academic Team
Published on: August 13, 2026
Those elements impart colour to the flame on heating in it, the atoms of which require low energy for the ionisation (i.e. absorb energy in the visible region of spectrum). The elements of which of the following groups in Modern periodic table will impart colour to the flame ?
Text Solution
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(a, c)
Elements of Group 1 & 2 have low IE values. So they impart colour to flame. E.g . Li, Na, K, Ca, Ba etc.
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