Interesting facts about group 2.

Group 2 of the periodic table is known as the alkaline earth metals. These elements are beryllium, magnesium, calcium, strontium, barium, and radium. Here are some interesting facts about them:

1. Beryllium is the lightest element in Group 2 and is the only metal that is lighter than air.

2. Magnesium is the most abundant element in the Earth's crust and is essential for life.

3. Calcium is the most abundant metal in the human body and is essential for healthy bones and teeth.

4. Strontium is used in fireworks to create the red color.

5. Barium is used in medical imaging to help diagnose certain conditions.

6. Radium is a radioactive element and was once used in medical treatments.