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In a sample of hydrogen atoms, all the a...

In a sample of hydrogen atoms, all the atoms exist in two energy levels A and B. A is the ground level and B is some higher energy level. These atoms absorb photons of energy 2.7 eV and attain a higher energy level C.After this, these atoms emit photons of six different energies. Some of these photon energies are higher than 2.7 eV, some equal to 2.7 eV and some are loss than 2.7 eV.
The atomic number of these atoms is

A

1

B

2

C

3

D

4

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The correct Answer is:
A
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