Transition metals are a group of metals considered dense and having high melting and boiling points. They fall between the alkaline earth metal group and the boron group. Transition metals are characterized by the number of internal energy levels occupied by the atoms. They are then separated into 2 groups: d-type transition metals and f-type transition metals. D-type transition metals consist mainly of (commercially) important metals and rare and unimportant metals. They range from very responsive to noble. The metals in this group all form a variety of different alloys. Type f transition metals consist of lanthanides (rare earth metals) and actinides ranging from thorium to lawrencium. These metals are very reactive. Only a few of these elements are common, but several f-type elements are useful. For example, cerium and thorium, found in alloys, uranium and plutonium in nuclear reactors. Gold is a soft, malleable yellow metal that falls in period 11 of group 6. It has the atomic number of 79 and the atomic symbol of Au, which means the Latin word Aurum. Like all other transition metals, gold has a high melting and boiling point. Its melting point is 1063℃ and its boiling point is 2966℃. Additionally, gold is the most malleable and ductile of all elements. It is also an excellent conductor of electricity and heat. It also has great resistance to corrosion. Gold is usually alloyed with other metals for jewelry. It has also been used as currency for centuries. Because gold lacks toxicity, it is often used in medicine as well as dentistry. Gold is mined in two ways: placer and vein mining. Placer mining is when the metal sits in the sand and the g...... middle of paper...... hey you don't have to worry so much about rust of the gold implant. Gold, as mentioned, has a high melting point, which can prove useful as one does not have to worry about the gold implant melting in the eye. Gold has a high density, which means there is more mass to help the eyelid close after the implant. Gold is also inert, meaning it will not react with other elements or substances. This can be beneficial because in the eye there can be many different substances, and if the gold reacts with it, it can harm rather than help. Gold is also used in lagophthalmos implants because it is considered inexpensive. Although gold is quite expensive in the market, it is not the most expensive compared to other transition metals. Platinum is more expensive than gold, making it a preferred choice over platinum..