
Antimony element (Sb) is in group 15 and period 5 of a periodic table. Antimony is in the p-block and it is classified as a metalloid on the periodic table.
There is a lot more information related to antimony which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Antimony element (Information Table)
- Antimony element in Periodic table
- Facts about Antimony
- Properties of Antimony
- Uses of Antimony
Antimony Element (Information Table)
The important data related to antimony element is given in the table below.
Appearance of antimony | Silvery gray metallic appearance |
Atomic number of antimony | 51 |
Symbol of antimony | Sb |
Atomic mass of antimony | 121.76 u |
Protons, Neutrons & Electrons in antimony | Protons: 51, Neutrons: 71, Electrons: 51 |
State of antimony (at STP) | Solid |
Group number of antimony in periodic table | 15 |
Period number of antimony in periodic table | 5 |
Block of antimony in periodic table | p-block |
Category of antimony | Metalloids |
Bohr model or Electrons per shell or Electrons arrangement in antimony | 2, 8, 18, 18, 5 |
Electron configuration of antimony | [Kr] 4d10 5s2 5p3 |
Orbital diagram of antimony | ![]() |
Valence electrons in antimony | 5 |
Electronegativity of antimony (on pauling scale) | 2.05 |
Atomic radius of antimony (van der Waals radius) | 206 picometers |
Density of antimony | 6.7 g/cm3 |
1st ionization energy of antimony | 8.64 eV |
Main isotope of antimony | 121Sb |
Melting point of antimony | 903.7 K or 630.6 °C or 1167.1 °F |
Boiling point of antimony | 1908 K or 1635 °C or 2975 °F |
Crystal structure of antimony | Rhombohedral |
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Antimony element in Periodic table
The Antimony element (Sb) has the atomic number 51 and is located in group 15 and period 5. Antimony is a metalloid and it is classified as a pnictogen element.
H | He | ||||||||||||||||
Li | Be | B | C | N | O | F | Ne | ||||||||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||
K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
Cs | Ba | La* | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
Fr | Ra | Ac** | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
*Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | ||||
**Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |
Facts about antimony
Here are a few interesting facts about antimony element.
- Antimony was given its name from the two Greek words “anti” and “monos” (which means a metal that is not found alone).
- Around 80% of the world’s antimony production comes from China.
- Earth’s crust contains around 0.2 to 0.5 ppm of antimony.
- Stibnite is a mineral of antimony from which most of the antimony is found.
Properties of antimony
Here is a list of some physical properties and chemical properties of antimony.
Physical properties of antimony
- Antimony is a solid metal having a silver gray appearance.
- Antimony can not be malleable as it is hard and brittle.
- Antimony is a poor conductor of heat as well as electricity.
- The melting point and boiling point of antimony is 903.7 K and 1908 K respectively.
- The density of antimony is 6.7 g/cm3 and its atomic mass is 121.76 u.
- There are many isotopes of antimony, but the most abundant isotope is 121Sb.
- The antimony has a rhombohedral crystal structure.
Chemical properties of antimony
- Antimony does not react with air when it is kept open in the air. But the black allotrope of antimony gets corroded in the air.
- Antimony can be dissolved in oxidizing acids like H2SO4 or HNO3.
- When antimony is heated in air, it forms antimony trioxide.
Uses of antimony
Here are some uses of the antimony element.
- The alloy of antimony and lead is used in manufacturing of battery components, cable sheathing, etc.
- Glass, paints, ceramics also uses some compounds of antimony in it.
- Antimony is used in some semiconductor devices like infrared detectors, diodes, etc.
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