How many valence electrons does Aluminum have?

What is the valency of aluminum(Al) Valence electrons

Aluminum is the 13th element on the periodic table. Aluminum is the element in group-13. Its symbol is Al. Through its valence electrons, aluminum forms bonds. This article discusses in detail the valence elements for aluminum. Aluminiumm is a transition metal within the Boron group. As is the case for this group, it forms compounds primarily at the +3 state of oxidation. Aluminum is the most common metallic element in -Earth’s crust, and also the most commonly used nonferrous metal. Aluminum is not found in its metallic form due to its chemical activity. However, its compounds can be found in almost all rocks and vegetation .

Aluminum element


In igneous rocks, aluminum is found chiefly in aluminosilicates within feldspars and feldspathoids and micas. It can also be found in soil derived from them, as clay, and after further weathering, as bauxite or iron-rich larite. The main source of aluminum is found in igneous rocks as aluminosilicates in feldspars, feldspathoids, and micas; in the soil derived from them as clay; and upon further weathering as bauxite or iron-rich laterite. Other gemstones also contain aluminum, including topaz and garnet. alunite, cryolite are two of the most important aluminum minerals.

Danish physicist Hans Christian Orsted isolated crude aluminum (1825) by reducing aluminum chloride and potassium alloy. Sir Humphry Davy, a British chemist, had created (1809) an iron and aluminum alloy by electrolyzing fused aluminium oxide (aluminumoxide) and had previously named the element. Friedrich Wohler from Germany produced aluminum powder (1827), and small globules (1845) using potassium metal as a reducing agent. From these, he was able determine some of the metal’s properties.


Aluminium can be used in many products, including aluminum foils, kitchen utensils and window frames. Aluminium’s unique properties are why it is so popular. It is low in density, non-toxic, and has high thermal conductivity. It can also be cast, machined, and formed easily. It is also nonmagnetic, and it does not spark. It is the second-most malleable and sixth-most ductile metal.

Because aluminium isn’t very strong, it is used often as an alloy. Aluminum alloys made with manganese and magnesium, as well as silicon, are light but very strong. These alloys are vital in the construction of aircraft and other forms transport.Aluminium forms a reflective coating that reflects light and heat when it is evaporated in vacuum. It doesn’t deteriorate like a silver-coated coating. Aluminium is an excellent conductor of electricity and is used often in electric transmission lines. Aluminium is more affordable than copper, and it is twice as efficient as copper in conductors.

Position of Aluminum in the periodic table

Position of Aluminum in the periodic table

Biological role

There is no biological function for aluminum. It is toxic to plants in its soluble +3 form. Acidic soils account for almost half of the arable land on Earth. The acidity accelerates the release of Al3+ minerals. The Al3+ can be absorbed by crops, which results in lower yields. Aluminum can build up in the body. A link to Alzheimer’s disease (senile memory loss) has been suggested, but not proved.

The amount of aluminium in our diet is only absorbed by our bodies. Except for cooking with acidic foods like rhubarb, using aluminium pans to cook in does not increase our intake. Pure aluminium hydroxide is sometimes used in indigestion tablets.

Health Effects of Aluminum

Aluminum is both one of the most commonly used metals, and one of the most common compounds found in the earth’s crust. Aluminum is often referred to as an innocent compound because of these facts. However, high levels of aluminum can lead to health problems. These harmful effects are caused by the aluminum-soluble form. They are known as ions. These particles are often found in aluminum solutions that contain other ions such as aluminum chlorine.

Natural abundance

Aluminium (8.1%) is the most common metal in the Earth’s crust, but it is rare to find it uncombined in nature. It can be found in minerals like bauxite or cryolite. Aluminium silicates are these minerals. The Hall-Heroult method is the most common way to extract aluminium. This process involves the dissolution of aluminium oxide in molten cryolite, and then electrolytically reducing it to pure aluminium. Aluminium production is extremely energy-intensive. Aluminium production consumes 5% of the electricity produced in the USA.

atomic number 13
atomic weight 26.9815384
boiling point 2,467 °C (4,473 °F)
melting point 660 °C (1,220 °F)
specific gravity 2.70 (at 20 °C [68 °F])
valence 3
electron configuration 1s22s22p63s23p1

The environmental effects of aluminum

We have been noticing the effects of aluminum, mainly because of its acidifying properties. Aluminum can build up in plants, and this could cause health problems for animals who eat these plants. Acidified lakes have the highest aluminum concentrations. These lakes have a declining number of amphibians and fish, as a result of the reactions of aluminum ions and proteins in the gills and embryo’s of frogs.
High levels of aluminum can have adverse effects on fish as well as birds and other animals who eat contaminated fish and insects, and animals that inhale aluminum-containing air.


Aluminum-27, the only naturally occurring aluminum isotope, is the only one. An element can be made up of multiple forms, called isotopes. The mass number of isotopes makes them different from one another. The element’s mass number is indicated by the number to the right of its name. The mass number is the sum of all the protons and neutrons found in an element’s nucleus. While the element’s number of protons is the most important, the number of neutrons within an atom can also vary. Each variation is called an isotope.

What are the valence electrons for aluminum (Al)?


Aluminum is the second element in group-13. The valence electron refers to the number of electrons remaining in the final orbit. The valence electrons are the number of electrons remaining in the shell after the electron configuration is complete. The properties of an element are determined by the valence electrons. They also participate in the formation bonds. Aluminum (Al) is the thirteenth element on the periodic table. The atom of an aluminum element contains thirteen electrons. This site has an article that explains the electron configuration for aluminum (Al). You can read it if necessary.

What are the valence electrons of aluminum(Al)


What number of electrons, protons, and neutrons does aluminium (Al) contain?

The nucleus can be found in the middle of an atom. The nucleus contains protons and neutrons. The atomic number for aluminum is 13. The number of protons in aluminum is called the atomic number. The number of protons found in aluminum (Al) is thirteen. The nucleus contains an electron shell that is circular and contains protons equal to them. This means that an aluminum atom can have a total number of thirteen electrons.

The difference between the number atoms and the number atomic masses is what determines the number neutrons in an element. This means that neutron number (n) = atomic mass (A) + atomic number (Z).

We know that 13 is the atomic number for aluminum and 27 is the atomic mass number. Neutron (n) = 27 – 13 = 14. The number of neutrons found in aluminum (Al) is therefore 14.

Valence is the ability of an atom of a chemical element to form a certain number of chemical bonds with other atoms. It takes values from 1 to 8 and cannot be equal to 0. It is determined by the number of electrons of an atom spent to form chemical bonds with another atom. The valence is a real value. Numerical values of valence are indicated with roman numerals (I,II, III, IV, V, VI, VII, VIII).

How can you calculate the number valence electrons within an aluminum (Al) atom.

These are the steps to determine the valence electron. One of these is the electron configuration. Without an electron configuration, it is impossible to determine the valence of any element. It is easy to determine the valence of any element by knowing the electron configuration. This site has an article that explains the electron arrangement. You can find it here. This article focuses on electron configuration.

You can identify valence electrons by placing electrons according the Bohr principle. We will now learn how to identify the valence electron for aluminum (Al).

The terms “oxidation degree” and “valence” may not be the same, but they are numerically almost identical. The conditional charge of an atom’s atom is called the oxidation state. It can be either positive or negative. Valence refers to the ability of an atom form bonds. It cannot have a negative value.

Calculating the number of electrons in aluminium (Al)

1st we need to know the total number of electrons in the aluminum(Al) atom. You need to know how many protons are in aluminum to determine the number electrons. To know the number protons in aluminum, you must also know its atomic number.

A periodic table is required to determine the atomic number. The periodic table contains the atomic number for aluminum (Al) elements. The number of protons is called the atomic number. The nucleus also contains electrons that are equal to protons.

This means that we can now say that the number of electrons in an aluminum atom is equal to its atomic number. The atomic number for aluminum is 13 according to the periodic table. This means that an aluminum (Al) atom contains a total number of thirteen electrons.

  1.  The valence is a numerical characteristic of the ability of atoms of a given element to bond with other atoms.
  2. The valence of hydrogen is constant and equal to one.
  3. The valence of oxygen is also constant and equal to two.
  4. The valence of most of the other elements is not constant. It can be determined by the formulas of their binary compounds with hydrogen or oxygen.

You will need to conduct electron configurations of aluminum (Al)

Important step 2. This step involves the arrangement of the aluminum electrons (Al). The total number of electrons in aluminum atoms is thirteen. The electron structure of aluminum shows that there are three electrons in each shell.

This means that the first shell of aluminum contains two electrons, while the second shell has eight electrons. The third shell has three electrons. Through the sub-orbit, the electron configuration of aluminum (Al) is 1s2 2s2 2p6 3s2 3p1.

Calculate the total electrons and determine the valence shell

The third step is to determine the valence. The valence shell is the last shell after the electron configuration. A valence electron is the sum of all electrons found in a valenceshell. The electron configuration of aluminum (Al) indicates that the last aluminum shell has three electrons (3s2 3p1). The valence electrons for aluminum are therefore three.

Aluminum compound formation

Through its valence electrons, aluminum is involved in the formation bonds. Three valence electrons are found in aluminum, as we know. This valence electron is involved in the formation bonds with other elements. The electron configuration for oxygen indicates that there are six Valence electrons in oxygen. The aluminum atom gives its valence electrons and the oxygenatom receives them.

This means that oxygen acquires the neon electron configuration, while aluminum atoms acquire it as well. Al2O3 is made by the exchange electrons between two aluminum atoms and three oxygen atoms. Ionic bonding is what makes aluminum oxide (Al2O3).

How many valence electrons does the aluminum ion (Al 3+) contain?

The electron configuration is completed when the shell containing the aluminum atom’s last electron has three electrons. The valency for aluminum in this instance is 3. This is what we know. During bond formation, elements with 1, 2, or three electrons in their last shells donate those electrons to the next shell.

Cations are elements that donate electrons to form bonds. Aluminium donates an electron from the shell that formed the bonds, and it becomes aluminum ions. Aluminum is a cation-element.

How many valence electrons does aluminum ion(Al3+) have

The electron configuration of aluminum ion(Al3+) is 1s2 2s2 2p6. The electron configuration for aluminum-ion shows that aluminum has only two shells, while the last shell contains eight electrons. The electron configuration indicates that the aluminum-ion (Al3+), has the electron configuration neon.

In this instance, the valency for the aluminum-ion would be +3. The valence electrons for aluminum ion (Al3+) have eight electrons in their last shell.

What is the aluminum valency (Al)?

Valency (or valence) is the ability of an atom of an element in a molecule to join another atom during formation. There are a few rules that can be used to determine valency. The valency of an element is the number of electrons found in an unpaired state in a shell following the electron configuration.

The electron configuration of an element in its excited state determines its value. Al*(13), the electron configuration of aluminum (Al) in excited is 1s2 2s2 2p6 3s1 3px1 3py1. The electron configuration of aluminum indicates that it has three unpaired electrons within the last shell (3s13px13py1).

What is the valency of aluminum(Al)

The valency of aluminum (Al) is therefore 3.


  • Atomic Symbol (on Periodic Table of Elements: Al).
  • 13 is the Atomic Number, which refers to the number of protons found in a nucleus.
  • Average mass of an atom (atomic weight): 26.9815386.
  • Al-27 (stable), and Al-26(radioactive; half-life 730,000 year) are the most common isotopes.
  • Phase at Room Temperature : Solid.
  • Melting Point: 1,220.58 degrees Fahrenheit (660.32 degrees Celsius).
  • Density: 2.70g per cubic centimeter.
  • Number of stables: 22.
  • Boiling Point: 4,566 degrees F (2,519 degrees C).


Alexander Stephenson

Candidate of Chemical Sciences, editor-in-chief of Lecturer at several international online schools, member of the jury of chemistry competitions and author of scientific articles.

Rate author

Leave a Reply