Questions: Determine whether the following pairs of elements can form ionic compounds. potassium and sulfur lithium and calcium sulfur and bromine chlorine and sodium sulfur and calcium iron and chlorine

Determine whether the following pairs of elements can form ionic compounds. potassium and sulfur lithium and calcium sulfur and bromine chlorine and sodium sulfur and calcium iron and chlorine
Transcript text: Determine whether the following pairs of elements can form ionic compounds. potassium and sulfur lithium and calcium sulfur and bromine chlorine and sodium sulfur and calcium iron and chlorine
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Solution

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Solution Steps

Step 1: Identify the Nature of Each Element

To determine if two elements can form an ionic compound, we need to identify whether they are metals or non-metals. Ionic compounds typically form between metals and non-metals.

Step 2: Analyze Each Pair

  1. Potassium (K) and Sulfur (S):

    • Potassium is a metal.
    • Sulfur is a non-metal.
    • They can form an ionic bond.

  2. Lithium (Li) and Calcium (Ca):

    • Both lithium and calcium are metals.
    • They cannot form an ionic bond.

  3. Sulfur (S) and Bromine (Br):

    • Both sulfur and bromine are non-metals.
    • They cannot form an ionic bond.

  4. Chlorine (Cl) and Sodium (Na):

    • Chlorine is a non-metal.
    • Sodium is a metal.
    • They can form an ionic bond.

  5. Sulfur (S) and Calcium (Ca):

    • Sulfur is a non-metal.
    • Calcium is a metal.
    • They can form an ionic bond.

  6. Iron (Fe) and Chlorine (Cl):

    • Iron is a metal.
    • Chlorine is a non-metal.
    • They can form an ionic bond.

Final Answer

  • Potassium and sulfur: \(\boxed{\text{Form ionic bonds}}\)
  • Lithium and calcium: \(\boxed{\text{Do not form ionic bonds}}\)
  • Sulfur and bromine: \(\boxed{\text{Do not form ionic bonds}}\)
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