Atomic Numbers and Electron Configurations Answers
For the n = 3 electron shell, which of the following quantum numbers are valid? Check all that apply.
Which of the following sets of quantum numbers describe valid orbitals? Check all that apply.
1s22s22p63s23p64s1:
K
1s22s22p63s23p64s23d8:
Ni
1s22s22p63s23p64s23d104p65s24d3:
Nb
Which diagram shows the correct electron configuration for nitrogen (N)?
Which diagram shows the correct electron configuration for fluorine (F)?
1s22s22p6:
The electron configuration for aluminum (Al) is shown below:1s22s22p63s23p1Which diagram shows the correct distribution of electrons in the electron shells of an aluminum atom?
What rule/principle states that electrons fill orbitals from lowest energy to highest energy?
What rule/principle states that electrons in the same sublevel (p, d, or f) are placed in individual orbitals, before they are paired up, to increase atomic stability?
1s22s22p63s23p3:
P
Did your answer include at least one of the items listed in each category below?
B: 1s2 2sA2pBA =
B =
1
Na: 1s22sC2pD3sEC =
D =
6
E =
1
Type in your answer below.
Dot structures make it easy to count electrons in each shell. Arrow-and-line diagrams show every orbital and the spin of electrons. Written configurations use minimal space and show how electrons are distributed among subshells.
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