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Which of the following is not an alkali metal?

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Question: Which of the following is not an alkali metal?

Options:

  1. Lithium
  2. Sodium
  3. Calcium
  4. Potassium

Correct Answer: Calcium

Solution: 

Calcium is not an alkali metal; it is an alkaline earth metal.

Which of the following is not an alkali metal?

Practice Questions

Q1
Which of the following is not an alkali metal?
  1. Lithium
  2. Sodium
  3. Calcium
  4. Potassium

Questions & Step-by-Step Solutions

Which of the following is not an alkali metal?
  • Step 1: Understand what alkali metals are. Alkali metals are elements found in Group 1 of the periodic table.
  • Step 2: Identify the alkali metals. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
  • Step 3: Know what alkaline earth metals are. Alkaline earth metals are found in Group 2 of the periodic table.
  • Step 4: Identify the alkaline earth metals. The alkaline earth metals include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
  • Step 5: Compare the elements in the question. If the element is in Group 1, it is an alkali metal. If it is in Group 2, it is not.
  • Step 6: Determine which element is not an alkali metal. In this case, calcium (Ca) is in Group 2, so it is not an alkali metal.
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