11.5 More about Group 1 — Visual & Photo Quiz

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Look at the flame test colors photograph: lithium (crimson red), sodium (golden yellow), and potassium (lilac). Why do elements produce characteristic flame colors when heated in a Bunsen burner?

Electrons absorb thermal energy, jump to higher energy levels, and emit light of specific wavelengths as they fall back to ground state

The Bunsen burner flame dyes the metal with fuel soot

The metal burns into different colored plastics

The atoms break down into colored sub-atomic radiation