Answer :
To determine the total number of valence electrons in the nitrate ion, [tex]\( NO_3^- \)[/tex], follow these steps:
1. Identify the number of valence electrons in each element:
- Nitrogen (N) has 5 valence electrons.
- Oxygen (O) has 6 valence electrons.
2. Count the number of each element in the ion:
- The nitrate ion [tex]\( NO_3^- \)[/tex] consists of 1 nitrogen atom and 3 oxygen atoms.
3. Account for the additional electron due to the negative charge of the ion:
- Because the nitrate ion has a -1 charge, it has 1 extra electron.
4. Calculate the total number of valence electrons:
- Number of valence electrons from nitrogen: [tex]\( 1 \times 5 = 5 \)[/tex]
- Number of valence electrons from oxygen: [tex]\( 3 \times 6 = 18 \)[/tex]
- Additional electron due to the negative charge: [tex]\( 1 \)[/tex]
5. Sum all the valence electrons:
- Total valence electrons = [tex]\( 5 + 18 + 1 = 24 \)[/tex]
Therefore, the total number of valence electrons in the nitrate ion, [tex]\( NO_3^- \)[/tex], is [tex]\( 24 \)[/tex].
1. Identify the number of valence electrons in each element:
- Nitrogen (N) has 5 valence electrons.
- Oxygen (O) has 6 valence electrons.
2. Count the number of each element in the ion:
- The nitrate ion [tex]\( NO_3^- \)[/tex] consists of 1 nitrogen atom and 3 oxygen atoms.
3. Account for the additional electron due to the negative charge of the ion:
- Because the nitrate ion has a -1 charge, it has 1 extra electron.
4. Calculate the total number of valence electrons:
- Number of valence electrons from nitrogen: [tex]\( 1 \times 5 = 5 \)[/tex]
- Number of valence electrons from oxygen: [tex]\( 3 \times 6 = 18 \)[/tex]
- Additional electron due to the negative charge: [tex]\( 1 \)[/tex]
5. Sum all the valence electrons:
- Total valence electrons = [tex]\( 5 + 18 + 1 = 24 \)[/tex]
Therefore, the total number of valence electrons in the nitrate ion, [tex]\( NO_3^- \)[/tex], is [tex]\( 24 \)[/tex].
