Platinum
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, and highly unreactive metal. Platinum is known for its lustrous silver-white appearance and its resistance to corrosion.
Properties of Platinum
- Symbol: Pt
- Atomic number: 78
- Density: 21.45 g/cm³
- Melting point: 1,768°C
- Boiling point: 3,825°C
- Hardness: 4-4.5 (Mohs scale)
Uses of Platinum
Platinum has various industrial, medical, and jewelry-related uses:
- Used in catalytic converters to reduce harmful emissions from vehicles
- Utilized in laboratory equipment, electrical contacts, dentistry tools, and chemotherapy drugs
- Highly valued in jewelry for its durability and luster
Study Tips
When studying platinum, it's important to understand its properties, uses, and its significance in various industries. Here are some tips for studying platinum:
- Memorize the chemical symbol (Pt) and atomic number (78) of platinum.
- Understand the physical and chemical properties of platinum, such as density, melting point, and hardness.
- Learn about the key uses of platinum in catalytic converters, jewelry, and industrial applications.
- Explore the historical and cultural significance of platinum, including its role in ancient civilizations and modern society.
- Practice identifying platinum in its natural state and in various products and applications.
◂Science Worksheets and Study Guides Eighth Grade. Rocks
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Rocks 
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Rocks Worksheet/Answer key
Rocks Vocabulary/Answer key
Rocks Vocabulary/Answer key
Rocks Vocabulary/Answer key
Rocks
Worksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.
Earth History: Explain how sedimentary rock is formed periodically, embedding plant and animal remains and leaving a record of the sequence in which the plants and animals appeared and disappeared.
Explain how sedimentary rock buried deep enough may be reformed by pressure and heat and these reformed rock layers may be forced up again to become land surface and even mountains.