Questions: Fill in the missing information: symbol atom or ion? check all that apply number of protons number of electrons ----------------------------------------------------------------------------------- neutral atom cation anion 48 neutral atom cation anion 17 18 Mn^3+ neutral atom cation anion

Fill in the missing information:

 symbol  atom or ion? check all that apply  number of protons  number of electrons 
-----------------------------------------------------------------------------------
         neutral atom  cation  anion    48 
         neutral atom  cation  anion  17  18 
 Mn^3+     neutral atom  cation  anion
Transcript text: Fill in the missing information: \begin{tabular}{|c|cc|c|c|c|} \hline symbol & \begin{tabular}{c} atom or ion? \\ check all that apply \end{tabular} & \begin{tabular}{c} number of \\ protons \end{tabular} & \begin{tabular}{c} number of \\ electrons \end{tabular} \\ \hline$\square$ & $\square$ neutral atom & $\square$ cation & $\square$ anion & $\square$ & 48 \\ \hline$\square$ & $\square$ neutral atom & $\square$ cation & $\square$ anion & 17 & 18 \\ \hline $\mathrm{Mn}^{3+}$ & $\square$ & neutral atom & $\square$ & cation & $\square$ anion \\ \hline \end{tabular}
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Solution

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Solution Steps

Step 1: Determine the Missing Symbol for the First Row
  • The number of electrons is given as 48.
  • Since the number of electrons equals the number of protons in a neutral atom, the element with 48 protons is Cadmium (Cd).
  • Therefore, the symbol is \( \text{Cd} \).
Step 2: Identify the Type for the First Row
  • Since the number of protons equals the number of electrons (48), it is a neutral atom.
  • Check the box for "neutral atom."
Step 3: Determine the Missing Symbol for the Second Row
  • The number of protons is given as 17.
  • The element with 17 protons is Chlorine (Cl).
  • Therefore, the symbol is \( \text{Cl} \).
Step 4: Identify the Type for the Second Row
  • The number of electrons is 18, which is more than the number of protons (17).
  • This indicates that the species is an anion.
  • Check the box for "anion."
Step 5: Identify the Type for the Third Row
  • The symbol is given as \( \text{Mn}^{3+} \).
  • The \( 3+ \) charge indicates it is a cation.
  • Check the box for "cation."

Final Answer

For the first row: \( \text{Cd} \) (neutral atom)
For the second row: \( \text{Cl} \) (anion)
For the third row: \( \text{Mn}^{3+} \) (cation)

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