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Eryn Cohen

ZINC

General
Element name: Zinc
Element symbol: Zn
Atomic number: 30
Atomic mass: 65.39 amu

Atomic Structure
Number of protons within nucleus: 30
Number of electrons within the neutral atom: 30
Most common isotope: Zn-64
Number of neutrons within the nucleus of the most common isotope: 34

Background
Zinc was officially discovered by the German chemist Andreas Marggraf and recognized as an element in 1746, but it was known to the Greeks and Romans since before 20 BC. The exact origin of the element name is not known but it is believed that the name is either derived from the German word zin, which means “tin”, or the German words zink, zinken, and zincum meaning "tooth-like, pointed or jagged." Most commonly, zinc is used for galvanizing metals such as steel and iron. Galvanizing is a process used to prevent rusting or corroding. During this process, a thin layer of zinc is coated on top of other metals. The second most common use of zinc is for forming alloys such as brass, an alloy made with zinc and copper. Alloys involving zinc form materials that are used in household fixtures, electrical components, and automobiles.

Physical Properties
State of matter at room temperature: solid
Melting point: 419.53°C
Boiling Point: 907.00°C
Density:7.14 g/mL
Abundance in Earth’s crust: 0.0078%

Chemical Properties
Other elements that will react zinc: oxygen exposed at high temperatures (with moisture), halogens (i.e. fluorine and chloride) exposed at a high temperatures
Compounds that contain zinc: zinc borate, zinc carbonate, zinc chloride, zinc oxide, zinc stearate, zinc sulfide
Zinc is a crucial element needed to sustain life on Earth. First of all, zinc plays an essential part in over 300 enzymes in the human body. Also, zinc also helps activate growth (height and weight) in any age group from infants to teenagers. In addition, zinc is critical in the immune system. If amounts of zinc in T-cells were to decrease, the body’s ability to fight off infections would be weakened. Increased zinc levels can help the body fight pneumonia, diarrhea, and even the common cold. Without zinc, there would be no taste, smell and appetite. Zinc is a key to activating parts of the brain that process taste and smell sensors. Zinc has many more uses which just goes to show the true importance of zinc.

Bohr Model of Zinc
Bohr Model of Zinc.jpg

Lewis Dot Structure of Zinc
Lewis Dot Electron Configuration Zinc.jpg





CLICK HERE TO SEE A REACTION WITH ZINC AND HYDROCHLORIC ACID