Erbium Properties (25 Facts You Should Know)

Er or Erbium is the rare earth metal that is the 12th member of the lanthanide series. Let us discuss some facts related to erbium in this article.

Erbium is silvery white solid metal that is not found in nature rather it formed a chemical combination of other elements. Gadolinite is the main ore of the erbium metal. Erbium has a fluorescent property and the cation is pink in color.

In this article, we will discuss the position of erbium in the periodic table, melting as well as boiling point, oxidation state, ionization energy, allotrope, isotopes and many related facts.

1. Erbium symbol

The atomic symbol of Erbium is “Er” as it is abbreviated from the English alphabet.

Erbium Symbol

2. Erbium group in the periodic table

The group of Erbium in the الجدول الدوري is unknown because all lanthanide elements are present in between the 3rd و 4th مجموعات الجدول الدوري. تأثير التدريع الضعيف لـ 4f مسؤول عن تقلص اللانثانيد.

3. Erbium period in the periodic table

Erbium belongs to period 6 in the periodic table because it has more than 54 electrons in the valence shell. Up to period 5, there will be 54th العناصر في وضع جيد ، لذا فإن الإلكترونات الثلاثين المتبقية تحصل على الـ 14th فترة في سلسلة اللانثانيد.

4. Erbium block in the periodic table

Erbium is an و - بلوك element because the valence electrons are present in the f orbital. It also has s, p, and d orbitals but the outermost electrons are present in the 4f orbital according to the Aufbau principle.

5. Erbium atomic number

The atomic number of Erbium is 68, which means it has 68 protons because the number of protons is always equal to the number of electrons.

6. Erbium atomic Weight

The atomic weight of Erbium is 167 on the 12C scale which means the weight of Erbium is the 167/12th جزء من وزن عنصر الكربون.

7. Erbium Electronegativity according to Pauling

The electronegativity of Erbium is 1.24 according to the Pauling scale. Er is a rare earth metal so it possesses an electropositive character which reflects in its electronegativity value.

8. Erbium atomic Density

The atomic density of Erbium is 9.066 g/cm3 which can be calculated by dividing the mass of Erbium by its volume.

9. Erbium melting point

The melting point of Erbium lies between 15290C or 1802K temperature because it is ductile metal so the van der Waal’s force of attraction in the crystal form is high.

10. Erbium boiling point

The boiling point of Erbium is 28680C or 3141K because it is a heavier metal and metal needs more energy to boil off to gain the same pressure as the atmosphere.

11. Erbium Van der Waals radius

The van der Waal’s radius of Erbium is 189 pm because it has 6s which has more spatial distribution but also has relativistic contraction and 4f orbital so it has a poor screening effect. So, the nucleus attraction force for the outermost orbital increases, and this decreases the radius.

12. Erbium ionic radius

The ionic radius of Erbium is 189 pm which is the same as the covalent radius because for Erbium the cation and anion are the same and it is not an ionic molecule. Rather, it forms by the covalent interaction between two Erbium atoms.

13. Erbium isotopes

تسمى العناصر التي لها نفس عدد الإلكترونات ولكن بأعداد كتل مختلفة نظائر of the original element. Let us discuss the isotopes of Erbium.

Erbium has 65 isotopes depending on the neutral numbers which are –

  • 142Er
  • 143Er
  • 144Er
  • 145Er
  • 145mEr
  • 146Er
  • 147Er
  • 147mEr
  • 148Er
  • 148mEr
  • 149Er
  • 149m1Er
  • 149m2Er
  • 149m3Er
  • 150Er
  • 150mEr
  • 151Er
  • 151m1Er
  • 151m2Er
  • 152Er
  • 153Er
  • 153m1Er
  • 153m2Er
  • 154Er
  • 155Er
  • 156Er
  • 157Er
  • 157mEr
  • 158Er
  • 159Er
  • 159m1Er
  • 159m2Er
  • 160Er
  • 161Er
  • 161mEr
  • 162Er
  • 162mEr
  • 163Er
  • 163mEr
  • 164Er
  • 165Er
  • 165m1Er
  • 165m2Er
  • 166Er
  • 167Er
  • 167mEr
  • 168Er
  • 168mEr
  • 169Er
  • 169m1Er
  • 169m2Er
  • 170Er
  • 171Er
  • 171mEr
  • 172Er
  • 172mEr
  • 173Er
  • 174Er
  • 174mEr
  • 175Er
  • 176Er
  • 177Er
  • 178Er
  • 179Er
  • 180Er

Only 11 isotopes of Erbium are stable which are discussed below –

نصف الحياةينبعث منها
160Erاصطناعي28.58 مساء92
162Erو ان آكثر من 0.139%مستقرN / A94
164Erو ان آكثر من 1.601%مستقرN / A96
165Erاصطناعي10.36 مساء97
166Erو ان آكثر من 33.503%مستقرN / A98
167Erو ان آكثر من 22.869%مستقرN / A99
168Erو ان آكثر من 26.978%مستقرN / A100
169Erاصطناعي9.4 دβ101
170Erو ان آكثر من 14.910%مستقرN / A102
171Erاصطناعي7.516 مساءβ103
172Erاصطناعي49.3 مساءβ104
Isotopes of Erbium


14. Erbium electronic shell

The shell surrounding the nucleus as per principal quantum number and holding the electrons is called an electronic shell. Let us discuss the electronic shell of Erbium.

The electronic shell distribution of Erbium is 2 8 18 30 8 2 because it has s, p, d, and f orbitals around the nucleus. Since it has more than 54 electrons and to arrange 68 electrons it needs 1 و 2 و 3 و 4 و 5 و 6 و 7th المدارات.

15. Erbium electron configurations

The electronic configuration of Erbium is 1s2 2s2 2p6 3s2 3p3d10 4s2 4p6 4d10 4f12 5s2 5p6 6s2 لأنه يحتوي على 58 إلكترونًا ويجب وضع تلك الإلكترونات في أقرب مدار من مدارات النواة s و p و d و f و يرمز لها بـ [Xe] 4f126s2.

16. Erbium energy of first ionization

The first ionization value for Erbium is 589.3 KJ / mol لأن الإلكترون يُزال من المدار 6s الذي يخضع للتقلص النسبي.

17. Erbium energy of second ionization

و2nd ionization energy of Erbium is 1150 KJ/mol because, in the 2nd التأين ، تتم إزالة الإلكترونات من نفس المدار 6s. على 2nd ionization, Er does not lose its stability but the 2nd تتم إزالة الإلكترون من الحالة المثارة لذلك يتطلب الكثير من الطاقة.

18. Erbium energy of third ionization

The third ionization energy for Erbium is 2194 KJ/mol because the third ionization occurs from 4f which has a poor shielding effect so the energy required is very high as Er lacks 5d orbital.

19. Erbium oxidation states

Erbium shows 0, +1, +2, +3, oxidation state because of the availability of electrons in its 6s and 4f orbitals and all the above oxidation state is stable for Er. But +3 is the common oxidation state of lanthanide elements.

20. Erbium CAS number

The CAS number of the Erbium molecule is 7440-52-0، والتي تقدمها خدمة الملخصات الكيميائية.

21. Erbium Chem Spider ID

The Chem Spider ID for Erbium is 22416. By using this number, we can evaluate all the chemical data related to the Erbium atom.

22. Erbium allotropic forms

مقويات are elements or molecules with similar chemical properties but different physical properties. Let us discuss the allotropic form of Erbium.

Erbium has no allotropic form rather it has a poor shielding effect.

23. Erbium chemical classification

Erbium is classified into the following categories:

  • Er is the rare earth element
  • Er is colored lanthanide soft metal
  • Er is a basic oxide

24. Erbium state at room temperature

Erbium exists in a solid at room temperature because it exists in the hexagonal close-packed lattice structure.

25. Is Erbium paramagnetic?

البارامغناطيسية is the tendency of magnetization in the direction of the magnetic field. Let us see whether Erbium is paramagnetic or not.

Erbium is paramagnetic because it has two unpaired electrons in its 4f and due to heavier elements, the magnetic moment not only depends on spin-only value but also there is some orbital contribution present.

في الختام

Erbium is a lanthanide metal element having a colored cation in the +3 oxidation state. Er is used as optical fibre.

بيسواروب شاندرا داي

مرحبًا ...... أنا بيسواروب شاندرا داي ، لقد أكملت الماجستير في الكيمياء. تخصصي هو الكيمياء غير العضوية. الكيمياء لا تدور حول القراءة سطراً بسطر والحفظ ، إنه مفهوم يجب فهمه بطريقة سهلة وهنا أشارككم مفهوم الكيمياء الذي أتعلمه لأن المعرفة تستحق مشاركتها.

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