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Sagot :
Let's complete the table step-by-step:
### For the first row:
1. Finding the Number of Protons (A):
- Given: Atomic Number is the number of protons.
- Atomic Number = 7
- Therefore, the number of protons (A) = 7
2. Finding the Number of Neutrons (B):
- Given: Mass Number = 15
- Number of Neutrons (B) = Mass Number - Number of Protons = 15 - 7
- Therefore, the number of neutrons (B) = 8
3. Finding the Atomic Number:
- Already known from the given data.
- Atomic Number = 7
4. Identifying the Element (C) using the Atomic Number:
- Given: Atomic Number = 7
- Looking up Atomic Number 7 in the periodic table, the element is Nitrogen (symbol N).
- Therefore, the element (C) is N.
### For the second row:
1. Finding the Number of Protons (D):
- Given: Atomic Number is the number of protons.
- Atomic Number = 26
- Therefore, the number of protons (D) = 26
2. Finding the Number of Neutrons (E):
- Given: Mass Number = 56
- Number of Neutrons (E) = Mass Number - Atomic Number = 56 - 26
- Therefore, the number of neutrons (E) = 30
3. Finding the Atomic Number:
- Already known from the given data.
- Atomic Number = 26
4. Identifying the Element (F) using the Atomic Number:
- Given: Atomic Number = 26
- Looking up Atomic Number 26 in the periodic table, the element is Iron (symbol Fe).
- Therefore, the element (F) is Fe.
### Completed Table:
[tex]\[ \begin{tabular}{|c|c|c|c|c|} \hline \begin{tabular}{c} Number of \\ Protons \end{tabular} & \begin{tabular}{c} Number of \\ Neutrons \end{tabular} & \begin{tabular}{c} Atomic \\ Number \end{tabular} & \begin{tabular}{c} Mass \\ Number \end{tabular} & \begin{tabular}{c} Element \\ (symbol) \end{tabular} \\ \hline 7 & 8 & 7 & 15 & N \\ \hline 26 & 30 & 26 & 56 & Fe \\ \hline \end{tabular} \][/tex]
### For the first row:
1. Finding the Number of Protons (A):
- Given: Atomic Number is the number of protons.
- Atomic Number = 7
- Therefore, the number of protons (A) = 7
2. Finding the Number of Neutrons (B):
- Given: Mass Number = 15
- Number of Neutrons (B) = Mass Number - Number of Protons = 15 - 7
- Therefore, the number of neutrons (B) = 8
3. Finding the Atomic Number:
- Already known from the given data.
- Atomic Number = 7
4. Identifying the Element (C) using the Atomic Number:
- Given: Atomic Number = 7
- Looking up Atomic Number 7 in the periodic table, the element is Nitrogen (symbol N).
- Therefore, the element (C) is N.
### For the second row:
1. Finding the Number of Protons (D):
- Given: Atomic Number is the number of protons.
- Atomic Number = 26
- Therefore, the number of protons (D) = 26
2. Finding the Number of Neutrons (E):
- Given: Mass Number = 56
- Number of Neutrons (E) = Mass Number - Atomic Number = 56 - 26
- Therefore, the number of neutrons (E) = 30
3. Finding the Atomic Number:
- Already known from the given data.
- Atomic Number = 26
4. Identifying the Element (F) using the Atomic Number:
- Given: Atomic Number = 26
- Looking up Atomic Number 26 in the periodic table, the element is Iron (symbol Fe).
- Therefore, the element (F) is Fe.
### Completed Table:
[tex]\[ \begin{tabular}{|c|c|c|c|c|} \hline \begin{tabular}{c} Number of \\ Protons \end{tabular} & \begin{tabular}{c} Number of \\ Neutrons \end{tabular} & \begin{tabular}{c} Atomic \\ Number \end{tabular} & \begin{tabular}{c} Mass \\ Number \end{tabular} & \begin{tabular}{c} Element \\ (symbol) \end{tabular} \\ \hline 7 & 8 & 7 & 15 & N \\ \hline 26 & 30 & 26 & 56 & Fe \\ \hline \end{tabular} \][/tex]
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