Which of the following elements has the electronic configuration ending in 4p5?

Which of the following elements has the electronic configuration ending in 4p5?

Step 1: Understand that electronic configuration describes how electrons are arranged in an atom.
Step 2: Recognize that '4p5' means we are looking at the p-block of the periodic table, specifically the 4th energy level (n=4) and the p subshell with 5 electrons.
Step 3: Identify that the p subshell can hold a maximum of 6 electrons, so '4p5' indicates that we are looking for an element that has 5 electrons in the p subshell.
Step 4: Recall that the p-block elements start from group 13 to group 18 in the periodic table.
Step 5: Count the total number of electrons to find the atomic number. The configuration '4p5' means there are 35 total electrons (2 from 1s, 2 from 2s, 6 from 2p, 2 from 3s, 6 from 3p, 2 from 4s, and 5 from 4p).
Step 6: Look up the element with atomic number 35 in the periodic table, which is Bromine (Br).
Step 7: Conclude that Bromine (Br) has the electronic configuration ending in 4p5.

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