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3. An atom has an atomic number of and a mass numbers of 70. How many
electrons will it have in its valence shell?
a. 5_
b. 4
c.3
d
4. Which of the following would produce a line specarum rather than a continuous
spectrum?
a Sunlight
c. A normal filament light bulb
b. Excited hydrogen atom
d. A yellow (sodian:) Kreet light
5. Among the following, which colour corresponds to light of the highest frequency?
a. Green
Red
c. Yellow
BI



Answer :

GinnyAnswer

Final answer:

The answer explains how to calculate the frequency of photons for electron transitions in a hydrogen atom.


Explanation:

(a) The frequency of the photon needed for the electron to transition from level 2 to level 3 can be calculated using Planck's formula, E = hf, where E is the energy difference between the levels. (b) Similarly, the frequency of the photon emitted when transitioning from level 2 to level 1 can be determined using the same formula.


Learn more about Atomic Spectra and Energy Transitions here:

https://brainly.com/question/35539896


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