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

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

Step 1: Understand what electronic configuration means. It describes how electrons are arranged in an atom.
Step 2: Identify the notation '4p5'. This means we are looking for an element that has 5 electrons in the 'p' subshell of the 4th energy level.
Step 3: Recall the order of filling electron subshells. The 'p' subshell can hold a maximum of 6 electrons, and it is filled after the 's' subshell.
Step 4: Recognize that the '4p' subshell starts filling after the '3d' subshell is filled, which occurs after the first 18 elements.
Step 5: Count the total number of electrons needed to reach the '4p5' configuration. This means we need 35 electrons in total.
Step 6: Look up the periodic table to find the element with atomic number 35. This element is Bromine (Br).
Step 7: Confirm that Bromine's electronic configuration ends in '4p5'.

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