The transition metals family
The transition metals are the group of metals located in the middle of the periodic table, and in the picture to the right the elements hilighted in green. The transition metals contain 1-2 valence electrons. Elements in this group have many uses, some include fine jewlery, batteries, or money in the form of coins. Many element in the transition metals family have saftey concerns becuase some are toxic and unhealthy in large quantities (mercury, thallium, alluminum, etc) if you are interested in learning even more about the transition metals please watch the video below
The symbol for gold is Au. Gold has the atomic number of 79. Gold is a metallic yellow color. Very few chemicals can attack gold which is why it keeps its shine after being buried for over 1,000 years! Gold is a very rare metal that is not commonly found which makes it really expensive. For an ounce of gold it is $1,205. Gold has been discovered on every continent on earth. Gold melts at 1064.43°. and boils at 5,173°F (2,856°C)
The name Copper comes from the English name Copper it has a latin meaning named Cyprium aes meaning a metal from Cyprus. Its atomic number is 29. Copper in the ancient world was used as Bronze. Copper is not difficult to extract from ore but mineral deposits were rare. It has the ability to conduct heat and electricity. It was mainly the first to be worked by people. Copper sulfate is used as an agricultural poison and as an algicide in water purification. Copper is an essential element. An average human should take about 1.2 milligrams per day. Its color is a reddish with a bright metallic luster. the reason that policemen in the USA are nicknamed "cops" or is to do with their uniforms which used to have copper buttons.
Nickels atomic number is 28.Nickel was discovered by Baron Axel Frederik Cronstedt in 1751 in a mineral called niccolite.Nickel resists corrosion. It is used in gas turbines and rocket engines. Some nickel compounds can cause cancer if exposed to a lot of dust. It is an essential element in baked beans.Copper comes from the German word kupfernickel which means ‘’Old Nick’s copper’’.
Discovered around 3000 B.C. iron has been around since ancient times, iron was discovered in ancient times by a direct descendant of Adam. The atomic number is 26. The chemical symbol came from the word ferrum which is latin for iron. iron has a melting point of 2,800°F (1,538°C) and a boiling point 5,184°F (2,862°C)
The atomic number for mercury is 80. Mercury has been known since ancient times. although the discovery is unknown, Mercury was known to the ancient Chinese, Egyptians and Hindus and has been found in Egyptian tombs dating back to about 1500 B.C, The Romans modified the Greek name slightly, referring to mercury as Hydragyrum, from which we get mercury’s modern chemical symbol Hg. mercury has a melting point of-37.89°F (-38.83°C) and a boiling point of 674.1°F (356.7°C)
Silver was discovered in 3000 B.C. The atomic number for sliver is 47. The name comes from the Anglo-Saxon name , ‘seolfor’. The melting point of silver is 1,763 degrees fahrenheit and 961.8 degrees celsius. Its boiling point is 3,923 degrees fahrenheit and 2,162 degrees celsius. Silver has been used for at least 5000 years. Pure silver is a good conductor of heat and electricity of all known metals. It’s the best reflector of visible light known and silver mirrors must be given a protective coating to prevent them from tarnishing. There is approximately 17 times more silver than gold exists in the world. It can prevent the spread of disease.
Platinum was discovered by Antonio de Ulloa in 1735 and had mining operation in Ontario, Canada. Platinum’s melting point 3,215 degrees fahrenheit and 1,768 degrees celsius. Its boiling point is 6,917 degrees fahrenheit and 3,825 degrees celsius. The atomic number for platinum is 78. The name is from the Spanish word platina, which is translated into “little silver.” When in room temperature it is a solid. It is combined with cobalt to make really strong magnet. Platinum is used in fuel cells and in anti-pollution devices for vehicles.