Transition Metals - Gold

1. Transition Metals - Gold “Gold” comes from the Latin word aurum, meaning obsolete gold. This is where its symbol, Au, comes from. • Atom contents- • 79 protons • 118 neutrons • 79 electrons • -making the atom neutral. At room temperature, gold is a solid. Its melting point is 1,943°F. It is 19.3 times denser than water, and 3 times denser than iron. Briley Wright 5-18

2. Transition Metals - Gold Gold, found in nature, is rather rare—making it highly valued. • The top goldmines are: • South Africa • Russia • The United States • Canada • Australia • Brazil • China • Common uses for gold: • Jewelry • Art • Medical purposes • Astronomy purposes Briley Wright 5-18

3. Transition Metals - Gold The Transvaal Province of South Africa holds most of the world’s gold—3300 tons. Gold never corrodes and is extremely malleable. It is a great thermal and electrical conductor. Only silver and copper can conduct better. major goldmines in South Africa Briley Wright 5-18

4. Transition Metals - Iron “Iron” comes from the Latin word ferrum—which is why its symbol is Fe. The atomic number, 26, signals that the atom has 26 protons. It has an atomic mass of 56—making the atomic contain 30 neutrons and 26 electrons. Iron is a solid at room temperature, and its melting point is 2,795°F. Climbing on up the scale at 4,982°F is Iron’s boiling point. Briley Wright 5-18

5. Transition Metals - Iron Iron is not nearly as valuable as gold, but it is found in nature. • The top iron ore deposits are found in: • Australia • Canada • France • India • South Africa • United States • Common uses for iron: • Medical purposes • Magnetic tapes • Steel • Buildings • Bridges • Skyscrapers Briley Wright 5-18

6. Transition Metals - Iron The Eiffel Tower—built in 1889—is made out of iron. Monuments like that today would most likely be made out of steel—ex. The Empire State Building. The Eiffel Tower was built in 1887-1889. The Empire State Building was built in 1929-1930. Briley Wright 5-18

7. Transition Metals – Silver (Ag) The name “Silver” comes from the Latin word “Argentum” which means Silver. This element has 47 protons (subatomic particles with a positive charge) and 47 electrons (subatomic particles with a negative charge). Victoria Wilson 5-17

8. Silver (Ag) • Silver, found in nature, has been used for centuries. By 2,000 BCE mining and smelting (extracting metal from its ore by a process of heating and melting) was common. From 500 BCE to 100 BCE, Laurium silver was a major source of silver in Ancient Greece. • By the 16th century, Spanish conquistadors discovered Silver mines in Bolivia, Mexico, Peru, etc., and now, those countries are some of the main providers of the world’s silver. Victoria Wilson 5-17

9. Silver (Ag) Silver has a melting point of 1763.2°F and a boiling point of 3924°F. • Uses For Silver: • Plating silverware • Fillings • Olympic Medals • Purifying Water Victoria Wilson 5-17

10. Transition Metals • All Transition Metals…. • Are ductile and malleable • Conduct electricity and heat • The only elements that produce a magnetic field Victoria Wilson 5-17

11. Titanium (Ti) The name “Titanium” comes from the Greek word “Titans”. This element has 22 protons (subatomic particles with a positive charge) and 22 electrons (subatomic particles with a negative charge). Victoria Wilson 5-17

12. Titanium (Ti) Titanium, found in nature, was discovered in 1791 by English clergyman and chemist William Gregor when he found and tested a sample of black sand at the beach in Menaccan, a city in Cornwall, England. Victoria Wilson 5-17

13. Titanium (Ti) Titanium has a melting point of3034°F and a boiling point of5949°F. • Uses for Titanium: • Golf Clubs (Tiger Woods uses a titanium club) • Toothpaste • Computers (Titanium PowerBook G4 laptop) Victoria Wilson 5-17

14. Transition Metals – Copper (Cu) Name Origin – The name “copper” comes from the Latin word “Cyprus” witch means “metal of Cyprus”. Cyprus was and island where the Romans mined for copper. This element has 29 protons and 29 electrons in a neutral atom. Copper is found in nature, it is found in meteorites, the ocean floor, and in Earths crust.

15. Copper (Cu) Copper is used for water piping, electrical wires, and decorations. Cole Phillips 5-11

16. Copper (Cu) Interesting Facts – copper is a very good heat conductor, copper alloys are used for many things, copper – zinc alloys are used to make brass witch is used to make brass instruments such as trombones and trumpets. Cole Phillips 5-11

17. References Book: Marshall Cavendish. Bench Mark Books. New York. Marshall Cavendish Corporation. 2001 Cole Phillips 5-11

18. Transition Metals – Zinc (Zn) Name Origin – Zinc came from a German word “Zinke” meaning pointed referring to the sharp pointed crystals forming after smelting. This element has 30 protons and 30 electrons in a neutral atom. Cole Phillips 5-11

19. Zinc (Zn) Zinc is man made, Indian metal workers heated calamine with wool in a crucible and mad zinc. Zinc is used to coat steel and other metals to prevent the metal form rusting, even if some zinc is gone, the zinc near the steel will help prevent rusting. Zinc also can glow so zinc is put on watch hands so they glow in the dark. It is also used to make high powered batteries in cell phones, computers, and electric cars. Cole Phillips 5-11

20. Facts and Pictures Zinc is used in space suits to reflect radioactive material. Cole Phillips 5-11

21. Transition Metals Platinum Origin of name- Spanish word for “Silver of the Pinto River” First discovered and where- Julius Caesar Scaliger, Found in the Pinto River There are 78 Protons, 78 Electrons, and 117 Neutrons in a neutral atom. By: Lourdes DuCote

22. Pictures Platinum Ore Platinum Bars

23. Element Family or Category Platinum is used in Pacemakers, Ear Implants, and Car Engines Most of the platinum Discovered is in orbit around Mars and Jupiter Aqua Regina (HNO3+HCI) Is the only known thing to react with platinum

24. More Facts Density is 12.4 ounce per cubic inch Radioactive platinum is used to kill cancer cells. Melting Point- 3216˚F Boiling point-6921˚F

25. Bibliography • Angliss, Sarah. Gold. New York: Benchmark Books, 2000. • Cavendish, Marshall. Copper. New York: Benchmark Books, 2001. • Stwertka, Albert. A Guide to the Elements. New York: Oxford University Press, 1996. • Watt, Susan. The Elements: Silver. New York: Benchmark Books, 2003. • Woodford, Chris. The Elements: Titanium. New York: Benchmark Books, 2003.