The unique structure of the transition metals causes them to form brightly colored compounds. This structure affects the way light is absorbed, transmitted and reflected. The oxidation state of the particular element affects the colors of the compounds it forms.Know More
Electrons at the d orbital affect the color of transition metal compounds. Therefore, different electron bonds in molecules allow manganese, for example, to form compounds ranging from dark purple to pale pink. These 5d electrons become more filled as one moves from the left to the right on the periodic table. Since the d orbitals are filled in zinc, it forms nearly colorless compounds.
Electrons absorb light of a certain wavelength to ascend to the next orbital, and the human eye sees the wavelengths that are not absorbed. Therefore, the energy gap between the higher and lower orbital levels is ultimately responsible for the variation in colors.
Transition metals have many common properties in addition to forming these highly colored compounds. They are all low ionization energy and have positive oxidation states. Transition metals have a tendency to be very hard yet remain malleable. They have high melting and boiling points. In addition, their high electrical conductivity makes transition metals ideal for use in electrical semiconductors.Learn more about Chemistry
The fact that some elements are more atomically stable than others accounts for their tendency to form compounds. This atomic stability is basically the amount of electrons an atom holds in its outer shell. When the outer shell is completely full, an atom is more stable than when the outer shell is only half full.Full Answer >
Metals are shiny because metals contain free electrons that vibrate when they come in contact with light. When the electrons vibrate, they produce their own light. This is reflected back and is what creates the shiny, lustrous appearance of metal.Full Answer >
The main transition elements, or metals, are located in the middle of the periodic table starting in Group IIA and extending to Group IIB. These elements are also known as the d-block elements, because their d orbitals are the highest energy level orbitals that are filled or partially filled.Full Answer >
The most active metals in the activity series are lithium, sodium, rubidium, potassium, cesium, calcium, strontium and barium. These elements belong to groups IA and IIA of the periodic table of elements.Full Answer >