Although quite different, beryllium, magnesium, calcium, strontium, barium, and radium are all classified as what type of metals?

• Correct Answer: alkaline earth metals
• acidic earth metals
• mucous earth metals
• detergent earth metals

Explanation: The Alkaline Earth Metals The alkaline earth metals are beryllium, magnesium, calcium, strontium, barium, and radium. Beryllium, strontium, and barium are rather rare, and radium is unstable and highly radioactive. In contrast, calcium and magnesium are the fifth and sixth most abundant elements on Earth, respectively; they are found in huge deposits of limestone and other minerals.

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