What is the total number of electrons in the electronic configuration [Kr] 5s2 4

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Question: What is the total number of electrons in the electronic configuration [Kr] 5s2 4d10 5p5?

Options:

Correct Answer: 53

Solution:

The total number of electrons is 36 (from Kr) + 2 (from 5s2) + 10 (from 4d10) + 5 (from 5p5) = 53.

What is the total number of electrons in the electronic configuration [Kr] 5s2 4d10 5p5?

What is the total number of electrons in the electronic configuration [Kr] 5s2 4d10 5p5?

Step 1: Identify the electronic configuration given: [Kr] 5s2 4d10 5p5.
Step 2: Understand that [Kr] represents the electron configuration of Krypton, which has 36 electrons.
Step 3: Count the electrons in the 5s2 configuration: 2 electrons.
Step 4: Count the electrons in the 4d10 configuration: 10 electrons.
Step 5: Count the electrons in the 5p5 configuration: 5 electrons.
Step 6: Add all the electrons together: 36 (from Kr) + 2 (from 5s2) + 10 (from 4d10) + 5 (from 5p5).
Step 7: Calculate the total: 36 + 2 + 10 + 5 = 53.

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