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paran01dandr01d
Chlorine.

If you search Google images for "Aufbau principle periodic table," you'll find some handy diagrams that will make it much easier to determine an element based on its electron configuration. Determine the number of electrons in the last part of the configuration (in this case, 5), locate that group on the Aufbau periodic table diagram, then count that number from left to right within that group. In this case, within the "3p" portion of the Periodic table, count to 5 and you'll find Chlorine as the answer.
arshikhan8123

1s² 2s² 2p⁶ 3s² 3p⁵ is the electron configuration for B)chlorine.

What are the 4 types of electron configuration?

The 4 special types of orbitals (s,p,d, and f) have distinctive shapes, and one orbital can hold a most of two electrons. The p, d, and f orbitals have different sublevels, accordingly can keep extra electrons. As stated, the electron configuration of each detail is precise to its position on the periodic table.

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or different bodily structure) in atomic or molecular orbitals.

Learn more about electron configuration here: https://brainly.com/question/11316046

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