for each element, drag and drop the orbitals into the correct order. (hint: start with 1s orbital)

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Accepted Answer

# Explanation:
## Step1: Determine the atomic number of each element
- Lithium ($Li$) has an atomic number $Z = 3$.
- Carbon ($C$) has an atomic number $Z = 6$.
- Fluorine ($F$) has an atomic number $Z = 9$.
## Step2: Write the electron configuration using the Aufbau principle
- For Lithium ($Z = 3$):
    - Fill the $1s$ orbital first ($1s^2$), then the $2s$ orbital ($2s^1$). So the electron configuration is $1s^{2}2s^{1}$.
- For Carbon ($Z = 6$):
    - Fill $1s^2$, then $2s^2$, and then start filling the $2p$ orbitals. Since we need to place $6-(2 + 2)=2$ electrons in the $2p$ orbitals, the electron configuration is $1s^{2}2s^{2}2p^{2}$.
- For Fluorine ($Z = 9$):
    - Fill $1s^2$, $2s^2$, and then place $9-(2 + 2)=5$ electrons in the $2p$ orbitals. So the electron configuration is $1s^{2}2s^{2}2p^{5}$.

# Answer:
- Lithium: $1s^{2}2s^{1}$
- Carbon: $1s^{2}2s^{2}2p^{2}$
- Fluorine: $1s^{2}2s^{2}2p^{5}$

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QUESTION IMAGE

Question

Explanation:

Step1: Determine the atomic number of each element

Step2: Write the electron configuration using the Aufbau principle

Answer: