Practice: What is the value of n for the electron based on the image of the atom provided?
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The Principal Quantum Number gives both the size and energy of an electron shell.
Principal Quantum Number
Example #1: Which of the following is a possible value for a principal quantum number shell?
Practice: Which electron possesses the lowest possible energy from the image provided?
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Additional Problems
Which is NOT directly determined by the principal quantum number, n, of the electron hydrogen atom?(A) The energy of the electron(B) The minimum wavelength of the light needed to remove the electron from the atom(C) The size of the corresponding atomic orbital(s)(D) The shape of the corresponding atomic orbital(s)(E) All of the above
For a hydrogen atom, the energy of a 5p orbital is (circle one)1) lower than the same as higher than the energy of a 5s orbital.2) lower than the same as higher than the energy of a 4f orbital.
Which electron is, on average, closer to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital?
Which electron is, on average, farther to the nucleus: an electron in a 3p orbital or an electron in a 4p orbital?
Give the numerical value of n corresponding to 3p.
How many orbitals are contained in the third principal level (n=3) of a given atom?A) 7B) 5C) 9D) 3E) 18
How many sublevels are in the n = 3 level?How many orbitals are in the n = 3 level?What is the maximum number of electrons in the n = 3 level?