Questions: Write the appropriate symbol for each of the following isotopes: Symbol, A, Z , 39, 19 , 29, 14

Transcript text: Write the appropriate symbol for each of the following isotopes: \begin{tabular}{|c|c|c|} \hline Symbol & $A$ & $Z$ \\ \hline$\square$ & 39 & 19 \\ \hline$\square$ & 29 & 14 \\ \hline \end{tabular}

Solution

Solution Steps

Step 1: Understanding the Isotope Notation

Isotopes are represented by the notation ${}^{A}_{Z}\text{X}$, where:

$A$ is the mass number (total number of protons and neutrons),
$Z$ is the atomic number (number of protons),
$\text{X}$ is the chemical symbol of the element.

Step 2: Identifying the Elements

To find the chemical symbol $\text{X}$, we use the atomic number $Z$:

For $Z = 19$, the element is Potassium (K).
For $Z = 14$, the element is Silicon (Si).

Step 3: Writing the Isotope Symbols

Using the identified elements and the given mass numbers $A$:

For $A = 39$ and $Z = 19$, the isotope is ${}^{39}_{19}\text{K}$.
For $A = 29$ and $Z = 14$, the isotope is ${}^{29}_{14}\text{Si}$.

Final Answer

\[ \boxed{{}^{39}_{19}\text{K}} \] \[ \boxed{{}^{29}_{14}\text{Si}} \]

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