Quantum Numbers: Number of Electrons Video Lessons

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Problem: What is the maximum number of electrons that can occupy individual 2s and 2p orbitals?a. 2 and 2, respectivelyb. 2 and 6, respectivelyc. 2 and 2, respectivelyd. 1 and 2, respectivelye. 1 and 3, respectively

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Establish the quantum numbers and determine the maximum number of electrons that can occupy 2s and 2p orbitals 

The first three quantum numbers are:

  • principal quantum number (n) →energy level in orbitals and its value could be any positive integer starting from 1 to infinity.
  • angular momentum quantum number (ℓ)→ (l) has to be at least 1 less than n, range of values from 0 up to (n-1)

Each ℓ value corresponds to a subshell:

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Problem Details

What is the maximum number of electrons that can occupy individual 2s and 2p orbitals?

a. 2 and 2, respectively

b. 2 and 6, respectively

c. 2 and 2, respectively

d. 1 and 2, respectively

e. 1 and 3, respectively

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