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What is the primary characteristic of alkaline earth metals? (2020)

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Question: What is the primary characteristic of alkaline earth metals? (2020)

Options:

  1. They are highly reactive
  2. They have a +2 oxidation state
  3. They are gases at room temperature
  4. They form covalent bonds

Correct Answer: They have a +2 oxidation state

Exam Year: 2020

Solution: 

Alkaline earth metals typically have a +2 oxidation state due to the loss of two electrons.

What is the primary characteristic of alkaline earth metals? (2020)

Practice Questions

Q1
What is the primary characteristic of alkaline earth metals? (2020)
  1. They are highly reactive
  2. They have a +2 oxidation state
  3. They are gases at room temperature
  4. They form covalent bonds

Questions & Step-by-Step Solutions

What is the primary characteristic of alkaline earth metals? (2020)
  • Step 1: Understand what alkaline earth metals are. They are a group of elements in the second column of the periodic table.
  • Step 2: Identify the elements in this group. They include beryllium, magnesium, calcium, strontium, barium, and radium.
  • Step 3: Learn about oxidation states. An oxidation state indicates how many electrons an atom can lose, gain, or share when it forms chemical bonds.
  • Step 4: Focus on the +2 oxidation state. Alkaline earth metals typically lose two electrons when they react with other elements.
  • Step 5: Conclude that the primary characteristic of alkaline earth metals is their tendency to have a +2 oxidation state due to losing two electrons.
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