公25 20 ts apx3py2pz 25

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The electron configuration in the photo corresponds to the element    __________

### Electron Configuration Diagram

#### Electron Configuration:
1s² 2s² 2p⁵

#### Orbital Diagrams:
1. **1s Orbital:**
   - Contains 2 electrons.
   - Represented by a box with two opposite arrows (↑↓) indicating paired spin.

   ![1s](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓) 
   - 1s

2. **2s Orbital:**
   - Contains 2 electrons.
   - Represented by a box with two opposite arrows (↑↓) indicating paired spin.

   ![2s](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓)
   - 2s

3. **2p Orbitals:**
   - Contains 5 electrons distributed among the 2px, 2py, and 2pz orbitals.
   - Represented by three boxes. The first two boxes (2px and 2py) show one up arrow (↑) paired with one down arrow (↓) indicating paired spin, while the third box (2pz) has a single up arrow (↑) indicating an unpaired electron.

   ![2px](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓)
   ![2py](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓)
   ![2pz](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑)
   
   - 2px, 2py, 2pz

This representation is typical for elements in the second period of the periodic table where electrons fill up the 1s, 2s, and 2p orbitals. The electron configuration and orbital diagram demonstrate how electrons are distributed within an atom’s orbitals and are essential for understanding chemical bonding and molecular structure.
Transcribed Image Text:### Electron Configuration Diagram #### Electron Configuration: 1s² 2s² 2p⁵ #### Orbital Diagrams: 1. **1s Orbital:** - Contains 2 electrons. - Represented by a box with two opposite arrows (↑↓) indicating paired spin. ![1s](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓) - 1s 2. **2s Orbital:** - Contains 2 electrons. - Represented by a box with two opposite arrows (↑↓) indicating paired spin. ![2s](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓) - 2s 3. **2p Orbitals:** - Contains 5 electrons distributed among the 2px, 2py, and 2pz orbitals. - Represented by three boxes. The first two boxes (2px and 2py) show one up arrow (↑) paired with one down arrow (↓) indicating paired spin, while the third box (2pz) has a single up arrow (↑) indicating an unpaired electron. ![2px](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓) ![2py](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑↓) ![2pz](https://via.placeholder.com/15x15/000000/FFFFFF?text=↑) - 2px, 2py, 2pz This representation is typical for elements in the second period of the periodic table where electrons fill up the 1s, 2s, and 2p orbitals. The electron configuration and orbital diagram demonstrate how electrons are distributed within an atom’s orbitals and are essential for understanding chemical bonding and molecular structure.
Expert Solution
Step 1

The electronic configuration of an element represents the arrangement of electrons in its atom in various orbitals.

The sum of the powers gives the total number of electrons present in its atom.

In an atom, the number of protons(atomic number) = number of electrons

Hence,

the total number of electrons gives the atomic number of the atom.

 

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