Hands-on Lab Skills/Science Inquiry -> lead

Properties of Lead:

• Atomic number: 82
• Symbol: Pb
• Atomic weight: 207.2
• Physical state at room temperature: Solid
• Color: Bluish-white when freshly cut, but tarnishes to a dull gray color
• Melting point: 327.5°C
• Boiling point: 1749°C

Uses of Lead:

Lead has been used in various applications throughout history, including:

• Batteries
• Ammunition and firearms
• Construction materials, such as lead pipes and roofing
• Radiation shielding
• Additives in paints, gasoline, and cosmetics (though its use in these products has been restricted due to health concerns)

Health Concerns:

Lead is a toxic substance that can have severe health effects, especially on children and pregnant women. Exposure to lead can cause damage to the brain and nervous system, as well as other organs. It is important to minimize exposure to lead and follow safety guidelines when working with lead-containing materials.

Study Guide:

Here are some key points to remember about lead:

1. Lead is a heavy metal with the symbol Pb and atomic number 82.
2. It is commonly used in batteries, ammunition, and radiation shielding.
3. Exposure to lead can have severe health effects, especially on children and pregnant women.
4. It is important to minimize exposure to lead and follow safety guidelines when working with lead-containing materials.