The sublevels contained in the hydrogen atom's first four energy level include:
Level one has one sublevel – The 's'
Level 2 has 2 sublevels - The s and p.
Level 3 has 3 sublevels - The s, p, and d.
Level 4 has 4 sublevels - s, p, d, and f.
The s sublevel has just one orbital, so can contain 2 electrons maximum. The p sublevel has 3 orbitals, so can contain a maximum of 6 electron.
The d sublevel has 5 orbitals, so can contain a maximum of 10 electrons. And the 4 sublevel has 7 orbitals, so can contain a maximum of 14 electrons.
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What is an energy level ?</h3>
An energy level in an atom is defined as the energy an electron has that is above ground state.
In conclusion, Energy levels can also be known as fixed distances from the nucleus of an atom where electrons may be found.
Learn more about energy levels at: brainly.com/question/28305087
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