Is this one question? 19. (1 point per blank) When a concentrated aqueous soluti

Question

Is this one question?

19. (1 point per blank) When a concentrated aqueous solution of a salt such as NaCI or LiCl is placed on a wire and inserted into a natural gas- air flame, light is emitted. The particles of light are referred to as Photon ( The Na solution emits light that has a rang color, while the Li solutio The light having a longer wavelength. color light from the element corresponds to The light emitted by the Na atom has a wavelength of 589 nm. The energy of these light particles is (calculate/state value and include units).

Explanation / Answer

Yes it is a one question, it is question on a flame test for alkai metals.

The ORANGE colour light from element SODIUM correspond to longer wavelength.

Energy of a radiation = hc/wavelength = 6.26 ×10^-34 J S * 3.0 ×10^8 m S^-1 / 589×10^-9 m

= .0318 × 10^ -14 J

= 3.18× 10^-15 J

=

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