High School

Identify the sublevels that are NOT organized from lowest energy to highest energy.

A) 5s, 4d, 5p
B) 2s, 2p, 3s, 3p, 3d, 4s
C) 1s, 2s, 2p, 3s, 3p, 3d, 4s
D) 2s, 2p, 3s, 3p, 4s, 3d, 4p

Answer :

Final answer:

The sublevels that are NOT organized from lowest energy to highest energy are: 5s, 4d, 5p; 1s, 2s, 2p, 3s, 3p, 3d, 4s; and 2s, 2p, 3s, 3p, 4s, 3d, 4p. The energy levels of subshells are determined by their quantum numbers, and the filling order is based on experimental results and theoretical calculations. Exceptions occur due to electron interactions.

Explanation:

The sublevels that are NOT organized from lowest energy to highest energy are:

A) 5s, 4d, 5p

C) 1s, 2s, 2p, 3s, 3p, 3d, 4s

D) 2s, 2p, 3s, 3p, 4s, 3d, 4p

The energy levels of the subshells are determined by their principal quantum number (n) and angular momentum quantum number (l). The filling order of subshells is based on experimental results and theoretical calculations, taking into account factors such as the size of the orbital and electron penetration. The exceptions occur due to interactions between electrons in the atom.

A subshell is the set of states defined by azimuthal quantum number, l, within a shell. The values l = 0, 1, 2, 3 correspond s, p, d and f subshells, respectively. The maximum number of electrons which can occupy a subshell is given by 2(2l + 1).

Learn more about subshells here:

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