
Aluminum element (Al) is in group 13 and period 3 of a periodic table. Aluminum is in the p-block and it is classified as a post-transition element on the periodic table.
There is a lot more information related to aluminum which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Aluminum element (Information Table)
- Aluminum element in Periodic table
- Facts about Aluminum
- Properties of Aluminum
- Uses of Aluminum
Aluminum Element (Information Table)
The important data related to aluminum element is given in the table below.
Appearance of aluminum | Silvery gray |
Atomic number of aluminum | 13 |
Symbol of aluminum | Al |
Atomic mass of aluminum | 26.982 u |
Protons, Neutrons & Electrons in aluminum | Protons: 13, Neutrons: 14, Electrons: 13 |
State of aluminum (at STP) | Solid |
Group number of aluminum in periodic table | 13 |
Period number of aluminum in periodic table | 3 |
Block of aluminum in periodic table | p-block |
Category of aluminum | Post transition element (boron group) |
Bohr model or Electrons per shell or Electrons arrangement in aluminum | 2, 8, 3 |
Electron configuration of aluminum | [Ne] 3s2 3p1 |
Orbital diagram of aluminum | ![]() |
Valence electrons in aluminum | 3 |
Electronegativity of aluminum (on pauling scale) | 1.61 |
Atomic radius of aluminum (van der Waals radius) | 184 picometers |
Density of aluminum | 2.7 g/cm3 |
1st ionization energy of aluminum | 5.986 eV |
Main isotope of aluminum | 27Al |
Melting point of aluminum | 933.47 K or 660.3 °C or 1220.5 °F |
Boiling point of aluminum | 2743 K or 2470 °C or 4478 °F |
Crystal structure of aluminum | Face Centered Cubic (FCC) |
Discovery of aluminum | By Hans Christian in 1824 |
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).
Aluminum element in Periodic table
The Aluminum element (Al) has the atomic number 13 and is located in group 13 and period 3. Aluminum is a metal and it is classified as a post-transition 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 aluminum
Here are a few interesting facts about aluminum element.
- The aluminum element is the 3rd most abundant element found from the earth’s crust (followed by oxygen and silicon).
- If only metals are considered, then the aluminum metal is the most abundant element present in the earth’s crust.
- Aluminum metal can reflect the heat as well as light.
- Recycling aluminum is very easy. Because of this reason, around 75% of total aluminum is still in use today.
- Aluminum is nontoxic for humans but it is toxic for fish.
- The weight of aluminum is 1/3rd the weight of steel.
Properties of aluminum
Here is a list of some physical properties and chemical properties of aluminum.
Physical properties of aluminum
- Aluminum has a silvery-gray shiny appearance.
- Aluminum is lightweight metal having a density of 2.7 g/cm3.
- Aluminum can be easily formed into different shapes because of its ductility.
- The stable isotope of aluminum is 27Al.
- The strength of aluminum is less and so it is alloyed with other elements to increase its strength.
- Aluminum has good thermal conductivity as well as electrical conductivity.
Chemical properties of aluminum
- When aluminum is kept open in the air, it forms a thin oxide layer and this layer protects the surface from corrosion.
- The aluminum metal is highly affected by salts like NaCl.
- Various compounds of aluminum like aluminum halides, aluminum sulfides as well as aluminum nitrides are known.
Uses of aluminum
Here are some uses of the aluminum element.
- Aluminum is used in packaging of foods because it reflects the heat. This keeps the food warm for a longer time.
- Aluminum is also used in medicines that help in reducing acidity.
- Aluminum can block light, oxygen, bacteria as well as microorganisms. Because of this the aluminum foil is used in packaging of medicines.
- Aluminum has a good thermal conductivity so it is used in some heat transfer applications.
- Because of its good electrical conductivity, it is also used in electrical appliances.
- Aluminum is used in airplanes which reduces its weight a lot.
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