Give the complete ground-state electron configuration for silicon (Si). Express the complete electron configuration using superscripts where appropriate. For example, the configuration for Li would be entered as 1s 22s^1. > View Available Hint(s) 1s^2, 2s^2, 2p^6, 3s^2, 3p^2. Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B Complete previous part(s) Part C Give the actual ground-state electron configuration for copper (Cu) using the complete form.

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Chapter1: Chemical Foundations
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An atom consists of a small, positively charged nucleus, surrounded by negatively charged electrons. We organize the electrons in a logical manner. As the atomic number increases, electrons are added to the subshells according to their energy. Lower energy subshells fill before higher energy subshells. The order of filling is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.

The periodic table can be used to help you remember the order.
Transcribed Image Text:An atom consists of a small, positively charged nucleus, surrounded by negatively charged electrons. We organize the electrons in a logical manner. As the atomic number increases, electrons are added to the subshells according to their energy. Lower energy subshells fill before higher energy subshells. The order of filling is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. The periodic table can be used to help you remember the order.
The image shows an educational exercise on electron configuration, specifically for silicon (Si) and copper (Cu), hosted on a website.

### Part A

**Prompt:**  
"Give the *complete* ground-state electron configuration for silicon (Si). Express the complete electron configuration using superscripts where appropriate. For example, the configuration for Li would be entered as 1s^2 2s^1."

**User Input:**  
"1s^2, 2s^2, 2p^6, 3s^2, 3p^2."

**Feedback:**  
"Incorrect: Try Again; 2 attempts remaining."

### Part B

**Instruction:**  
"Complete previous part(s)."

### Part C

**Prompt:**  
"Give the *actual* ground-state electron configuration for copper (Cu) using the *complete* form. Express the electron configuration using superscripts where appropriate."

The interface includes options to Submit, view Previous Answers, or Request an Answer. There are links to Review, Constants, and the Periodic Table available.

The exercise is part of an educational platform by Pearson, as indicated by their logo at the bottom of the screen.
Transcribed Image Text:The image shows an educational exercise on electron configuration, specifically for silicon (Si) and copper (Cu), hosted on a website. ### Part A **Prompt:** "Give the *complete* ground-state electron configuration for silicon (Si). Express the complete electron configuration using superscripts where appropriate. For example, the configuration for Li would be entered as 1s^2 2s^1." **User Input:** "1s^2, 2s^2, 2p^6, 3s^2, 3p^2." **Feedback:** "Incorrect: Try Again; 2 attempts remaining." ### Part B **Instruction:** "Complete previous part(s)." ### Part C **Prompt:** "Give the *actual* ground-state electron configuration for copper (Cu) using the *complete* form. Express the electron configuration using superscripts where appropriate." The interface includes options to Submit, view Previous Answers, or Request an Answer. There are links to Review, Constants, and the Periodic Table available. The exercise is part of an educational platform by Pearson, as indicated by their logo at the bottom of the screen.
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