Antimony Element in Periodic Table | Atomic Number Atomic Mass
Antimony is a chemical element and it is a member of group 15 and period 5 in the periodic table. Atomic number of Antimony is 51 and it is indicated by the symbol Sb. It belongs to the nitrogen family. Phosphorous, Arsenic, Bismuth and Moscovium are the other elements in the nitrogen family. It is more electronegative than tin or bismuth and less electronegative than tellurium or arsenic. 121Sb and 123Sb are the stable isotopes.
Health Effects :
Antimony and its compounds are dangerous to human health. They may cause diarrhea, stomach pain and vomiting and stomach ulcers. Antimony and its compounds in higher doses cause heart, liver, lung and kidney damage.
Use Of Antimony Element:
- It is used to make semiconductor devices;
- Antimony alloys are used in batteries, type metal, cable sheathing and low friction metals;
- Antimony metals are also used to make paints, glass, pottery, ceramic enamels and flame-proofing materials;
- Ancient Egyptian women used antimony for cosmetic purposes of darkening eye-lashes and lower eyelids.
Antimony Element Information:
Discovery year: ca. 800
Discovered by: -
Atomic number: 51
Relative atomic mass: 121.760
Electron configuration: [Kr] 4d10 5s2 5p3
Other elements in the same block:
Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Aluminium, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Gallium, Germanium, Arsenic, Selenium, Bromine, Krypton, Indium, Tin, Tellurium, Iodine, Xenon, Thallium, Lead, Bismuth, Polonium, Astatine, Radon, Nihonium, Flerovium, Moscovium, Livermorium, Tennessine and Oganesson are the same block elements.
Period: period 5
Other elements in the same period:
Group: group 15 (pnictogens)
Other elements in the same group:
Other elements in the same orbital:
Key isotopes: 121Sb
Melting point: 630.628°C, 1167.13°F, 903.778 K
Boiling point: 1587°C, 2889°F, 1860 K
Element category: metalloid
Density (g cm−3): 6.68
CAS number: 7440-36-0
Color: silvery lustrous gray
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