How many valence electrons does Manganese have?

What is the valency of manganese Valence electrons

Manganese is 25th in the periodic tables. Manganese, the element of group 7, has the symbol ‘Mn‘. Manganese can be considered a transitional metal. Manganese’s valence electrons are therefore determined differently.

It was first identified as an element by the Swedish chemist Carl Wilhelm Scheele in 1774 while working with the minerals Pyrolusite. He was also able to isolate it the following year by his associate Johan Gottlieb Gahn. Manganese is an essential ingredient in steelmaking, even though it is not often used in its pure form. 

manganese chemical element

Health side effects of manganese

Manganese, a common compound, can be found all over the globe. Manganese is one of the three toxic essential trace elements. This means that it is necessary for human survival, but can also be toxic if too many levels are present in a person’s body. People who do not consume the recommended daily allowances will have a decrease in their health. However, if the intake is too high, health problems can also occur.
Humans absorb manganese mainly through food like spinach, tea, and herbs. Foodstuffs with the highest levels of manganese include grains, rice, soya beans and eggs. Manganese is absorbed in the body and will be carried through the blood to liver, kidneys, pancreas, and endocrine glands.

Biological role

Manganese is an important element in all living organisms. Manganese is found in many enzymes. Four atoms are of manganese make up the enzyme that converts water molecules into oxygen during photosynthesis. Low levels of manganese can be found in some soils. This is why it is often added to fertilisers to provide a food supplement for grazing animals.

A human’s average body has 12 mg of manganese. About 4 milligrams are taken in daily from foods like nuts, wholegrain cereals and tea. It is essential for bone health. Without it, bones become spongier and more likely to break. It is also necessary for the utilisation of vitamin B1.

Place of Manganese (Mn) in the periodic table

Place of Manganese (Mn) in the periodic table

Take care

Excessive manganese can be toxic. Exposed to manganese fumes or dusts for any length of time should not exceed five milligrams per square meter (mg/m3). This is because of its toxic nature. Any organic material that they come in contact with acidic permanganate solutions can be oxidized by them. Some organic substances can be ignited by the heat generated during oxidation. A 2005 study found a link between manganese inhalation in rats and central nervous system toxicity. Long-term exposure to naturally occurring manganese from shower water could put up to 8.7 millions Americans at risk.

Natural abundance

Manganese is fifth in the Earth’s crust. The most common minerals of manganese are pyrolusite, manganese dioxide, and rhodochrosite, manganese carbate. China, Australia, Gabon, and Africa are the main areas of manganese mining. You can either reduce the oxide with sodium or magnesium, or electrolyze manganese sulfate. On the ocean floor, there have been manganese nodules. These nodules are composed of approximately 24% manganese and smaller amounts other elements.

atomic number25
atomic weight54.938
boiling point2,062 °C (3,744 °F)
melting point1,246 °C (2,275 °F)
density7.21–7.44 gram/cm3 at 20 °C (68 °F)
oxidation states+2, +3, +4, +5, +6, +7
electron configuration[Ar]3d54s2

What are the valence elements of manganese (Mn)

The first element in group 7 is manganese. The elements found in groups 3-12 can be called transition elements.


What are the valence electrons of manganese(Mn)The number of electrons remaining in the orbit’s last orbit is the valence electron. However, in the case with transition elements the valences electrons are still in the inner shell(orbit). The manganese electron configuration demonstrates that the last electrons are in the d orbital. The element’s properties are determined and formed by the valence elements.

How many protons and electrons does a manganese-atom have?

The nucleus is located at the center of an atom. In the nucleus are protons and neutrons. Manganese (Mn), has an atomic nucleus of 25. The number of protons in a substance is known as the atomic number. The number of protons found in manganese is 25. In the nucleus’s outer shell, electrons that are equal to protons can be found. This means that a manganese-atom has twenty-five electrons. The difference in the number and the number the atoms is used to determine the number neutrons in an element. The neutron number n = atomic Mass Number (A)-atomic Number (Z)

We know that the atomic quantity of manganese (25) and the atomic weight number (54.93804u) are approximately 55. Neutron (n) = 55 – 25 = 30. Thus, there are 30 neutrons in manganese (Mn).

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 do I calculate the number valence electrons within a manganeseatom?

Following a few steps, you can determine the valence of electrons. The electron configuration is one. Without the electron configuration, it’s impossible to determine if the valence electron is present. It is simple to determine the electron configuration of all elements. Bohr’s atomic model cannot determine the valence of the transition elements. Because the transition element’s valence electrons are found in the inner shell, The Aufbau principle can help you determine the valence element of a transitional element. This is how we can determine the valence of manganese (Mn).

Determine the number of electrons present in manganese (Mn)

We first need to determine the total number electrons present in the manganese (Mn) atom. To determine the number and type of electrons in manganese, you must know the number protons. You need to know what the atomic numbers of the elements of manganese are to determine the number of electrons. The periodic table can help us determine the atomic numbers. The periodic table provides the information necessary to determine the atomic number for manganese. The number of protons in a given atom is the atomic number. Additionally, electrons equal to protons can be found outside of the nucleus.

We can thus conclude that electrons are equal to the atomic numbers in the Mn (manganese) atom. We can see from the periodic table that the atomic quantity of manganesee is 25. The total number of electrons in the manganese-atom is therefore 25.

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.

Manganese needs to be electron-configured

Step 2 is crucial. The arrangement of the manganese electrons is crucial in this step. We know that each atom of manganese has a total twenty-five electrons. The electron configuration shows that Mn’s first shell contains two electrons, while Mn’s second shell contains eight electrons. Three shells have thirteen electrons each, and four shells contain two electrons. The electron configuration of manganese via the sub-orbit 1s2 2s2 2p6 3s2 3p6 4s2 3d5.

Calculate total electrons by determining the valenceshell

The third step involves diagnosing the orbit (valence shell). The valenceshell is the shell that follows the electron configuration. The total number (or valence) of electrons within a valence shell are called valence electronics. However, the valence elements of transition elements are found in the inner orbit. To determine the valence of the transition element, you must add the total electrons in d-orbital to those in the last orbit. The electron configuration of manganese reveals that the last layer of manganese contains two electrons while the d orbital has five electrons (3d 5). Manganese’s valence electrons are seven.

  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.

How many valence elements does manganese-ion (Mn 2+Mn 3+Mn 4+), have?

During bond formation, the elements that have 1 or 2 electrons in their shells donate those electrons. Cation are elements that donate electrons in order to form bonds. There are three types manganese Mn2+, Mn3+ and Mn4+ ion. types of manganese are all found in the atom. Two electrons are donated by the manganese Atom from the last shell in order to form the manganese on(Mn2+).

How many valence electrons does manganese ion(Mn2+,Mn3+,Mn4+) have

Here is the electron configuration of Manganese ion(Mn2+) is 1s2 2s2 2p6 3s2 3p6 3d5. This electron configuration shows manganese has three shells while the last shell has thirteen electrons. This is why manganese (Mn2+), has a total number of thirteen valence neutrons. Two electrons are donated by the manganese-atom in the 4s orbital, and an electron in the 3d orbital. This electron is used to convert to manganese (Mn3+).

How many valence electrons does manganese ion(Mn2+,Mn3+,Mn4+) have

The electron configuration of the manganese-ion(Mn3+), however, is 1s22s2 2p6 4s2 3s2 3p6 This manganese-ion shell has three electrons. The shell that contains twelve electrons is called Mn3+. Thus, the twelve valence electrons in the manganese (Mn 3+), ion are twelve. The manganese-atom also donates two electrons in the 4s orbital, and two electrons at the 3d orbital in order to convert to the manganese (Mn 4+).

How many valence electrons does manganese ion(Mn2+,Mn3+,Mn4+) have

This is the electron configuration of Manganese ion(Mn3+) is 1s2 2s2 2p6 3s2 3p6 3d4. This manganese-ion has three shells. The last shell has eleven electrons. In this instance, the valence elements of Manganese Ion (Mn4+), are eleven.

What is the valency (Mn) of manganese?

Valency is the ability for an element’s atom to bond with another atom in the formation of a molecular structure.

What is the valency of manganese

There are several rules to help you determine if you have valency. The valency is the number electrons that are in unpaired states in the last shell after an electron configuration of an element. The oxidation state of manganese is +2, +3, +4, +1, +16, &7. The manganese(II-O) bond uses the oxidation status of manganese as +2. The valency for manganese in this compound was 2. However, permanganate ion(MnO4)1- has used the oxidation status of manganese 7.

The valency for manganese in this compound was 7.

The bond formation is what determines the valency and oxidation state.


  • 25 is the atomic number (number protons in the nucleus).
  • Density: 4.29 ounces/cubic inch (7.43 grams/cubic cm).
  • Mn-55 is the most common isotope (100 percent natural abundance).
  • Melting point: 2,282 degrees Fahrenheit (1,250 degrees Celsius)
  • Average mass of an atom (atomic weight): 54.938
  • Phase at room temperature
  • Boiling point: 3,740 F (2.060 C).
  • Number of natural isotopes (atoms with different numbers of neutrons from the same element): 1. 21 radioactive and artificial isotopes have extremely short half-lives.
  • Atomic symbol (on Periodic Table of Elements: Mn


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.

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