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Answer:
1. One thing often made of Gold: Jewelry, such as rings, necklaces, and bracelets, is often made of gold.
2. Proton comparison between Aluminum and Carbon:Aluminum (Al) has 13 protons.Carbon (C) has 6 protons. Therefore, Aluminum has more protons than Carbon. Aluminum has 7 more protons than Carbon.
3. Why things made of lead are often heavy: Lead has a high atomic mass and density. The atoms in lead are packed closely together and have a large mass, making lead objects significantly heavy compared to those made of less dense materials.