1. Tardigrade
  2. Question
  3. Chemistry
  4. The bromine atom possesses 35 electrons. It contains 6 electrons in 2 p -orbital, 6 electrons in 3 p -orbital and 5 electrons in 4 p -orbital. Which of these electrons experiences the lowest effective nuclear charge?

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Q. The bromine atom possesses $35$ electrons. It contains 6 electrons in $2 p$ -orbital, 6 electrons in $3 p$ -orbital and 5 electrons in $4 p$ -orbital. Which of these electrons experiences the lowest effective nuclear charge?

Classification of Elements and Periodicity in Properties

Solution:

Electronic configuration of $Br (35): 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2}$ 116. $3 p^{6} 3 d^{10} 4 s^{2} 4 p^{5}$

The electron in $4 p$ are farthest from nucleus thus experience least effective nuclear charge.