Transition Elements List
| Period | Group | Element (Symbol) | Atomic Number | Electronic Configuration |
| 4 | 3 | Sc | 21 | 3d14s2 |
| 4 | 4 | Ti | 22 | 3d2 4s2 |
| 4 | 5 | V | 23 | 3d3 4s2 |
| 4 | 6 | Cr | 24 | 3d4 4s2 |
Which elements make up the f block?
- They are heavy metals.
- They generally have high melting and boiling points.
- They exhibit variable oxidation states.
- They form coloured ions.
- They have the tendency to form complex compounds.
- Actinoids are radioactive in nature. The elements after uranium are called transuranium elements.
What are all of the f-block elements known as?
The f-block elements are also known as inner transition elements, although that term is normally taken to include lawrencium and lutetium as well, which are part of the d-block elements. There are two series. Elements of the series where the electrons are in 5f orbitals belong to the actinide series.
Which group of elements belongs to the f-block?
F Block Elements
- Classification of F Block Elements. The first series of elements are called lanthanides and include elements with atomic numbers beginning from 57 and ending at 71.
- Properties of F block Elements. Are placed between (n-1)d and ns block elements in the periodic table. ...
- Difference between Lanthanides and Actinides. ...
What are the properties of f block elements?
- Elements in which the last electron enters in the f subshell of the antipenultimate shell are f block elements.
- Also called inner transition elements.
- They are all heavy metals.
- They also form complex salts.
- They show variable oxidation states.
- Their compounds are generally coloured.
- Actinoids elements are radioactive.
What group number is f?
Group 17Quick Reference TableSymbolFAtomic Number9Group17 (Halogens)Electron Configuration1s22s22p5Atomic Weight18.998 g7 more rows•Aug 15, 2020
Do f-block elements have group numbers?
The f block elements are placed in 3B group or according to IUPAC Placed in group 3. It is the largest group of periodic table. They don't have group numbers.
How many groups are on the f-block?
There are 14 elements filling up the 'f' orbital in each series. The position of F Block Elements in the Periodic Table: F block elements are placed separately at the bottom of the periodic table. They are a subset of 6th and 7th periods.
How do I find the group number in f-block?
If the element is in the f block, then the number of the group is always 3.
What are the characteristics of f-block elements?
They are heavy metals. They are hard metals. They generally have high melting and boiling points. They exhibit variable oxidation states. They form...
How many elements are there in the f-block?
The period 6 inner transition metals (lanthanides) are cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu...
What is the property of Misch metal?
Misch metal, an alloy consisting of about 50 per cent cerium, 25 percent lanthanum, 15 percent neodymium, and 10 per cent other rare-earth metals a...
Why are f blocks called inner transitions?
The elements in which the differentiating electron enters into (n–2)f orbital are known as f block elements. They are also called inner transition...
Why are f-block elements called rare earth metals?
Although they are called rare, rare earth elements are not extremely rare on Earth. They were called this because they are spread very evenly over...
What are f-Block Elements?
The elements in which the differentiating electron enters into (n–2)f orbital are known as f block elements. They are also called inner transition elements, due to their position and properties. They belong to the third group of the periodic table. There are two series of f-block elements, 4f series (lanthanoid) and 5f series (actinoid). f^o, f^7
Parts of f-block Elements
The f-block element is made up of two series: Lanthanoid Series and Actinoid Series.
Comparison Between Lanthanoids and Actinoids
The elements of the lanthanoid and actinoid series involve the filling of orbitals. Lanthanoids and actinoids have many distinguishing properties.
Definition of F-Block Elements
F-Block elements are the elements in which the last electron enters any one out of seven f-orbitals of their respective ante-penultimate shells. These elements possess electrons, (1 to 14) in the f orbital, (0 to 1) in the d orbital of the penultimate energy level as well as in the outermost orbital.
Classification of F-Block Elements
Lanthanides and actinides are the two series of the f-block elements or inner transition elements.
Properties of Lanthanide (Atomic Number: 58 to 71)
The atomic radius decreases along with the series of lanthanides. The reason for this decrease is lanthanoid contraction. Lanthanoid contraction happens due to the poor shielding of the 4f orbital. Due to this poor shielding, the outermost electron is affected by the positive nuclear charge.
Properties of Actinides (Atomic Number: 90 to 103)
Due to actinoid contraction, the atomic radius decreases along with the series. This contraction happens due to the poor shielding of the 5f orbital. Due to this, the outermost electron is affected by the positive nuclear charge and this decreases the atomic radius along with the actinide series.
Similarities between Lanthanides and Actinides
In the first series (lanthanides) of the inner transition elements, the filling of the last electron takes place to the 4f orbital. After lanthanum 14 elements are there, since these elements are after lanthanum the series has been called the lanthanide series.
Difference between Lanthanides and Actinides
Some of the differences between Lanthanoids and Actinoids have been given below.
Uses of Inner F-Block Elements
Some of the important uses of Inner Transition Metals are given below:
What does the label on an element mean?
Each element has a label: one or two letters alongside their atomic number 1 through 118, representing the number of protons in the atom’s positively charged core. Since atoms have no charge, as the number of positive protons increases one by one so does the number of negative electrons surrounding the center.
Where are electrons sitting on the periodic table?
Those electrons are sitting in the f orbital. An element’s location on the periodic table is based on where the last electron to get to the performance is sitting. If that spectator is in the best seats — the s orbital — the atom is in the s-block, the first two columns of the periodic table.
Do chemistry students have to park in a F block?
But chemistry students don’t treat the f-block elements the way their fundamental name implies. The f-blockers have to park as far away from the theater as possible and eat hot dogs from cramped seats and watch the show through binoculars while the other elements get to live the life of luxury.
F-Block on Periodic Table of Elements
The F-Block elements on the Periodic Table can be found traditionally in the two separate horizontal rows that are disjointed and located at the bottom of the table. The F-Block elements are often called the "inner transition metals" due to the space on the Periodic Table from which they are removed.
Properties of F-Block Elements
In general terms, F-Block elements are transition metals. It is not incorrect to label them as such, but they do have a few key distinguishing features that set them apart. These elements share many properties with the d-block transition metals, but they also differ in some key ways due to the unusual shape of the valence shell of electrons.
What are F-Block Elements: Lists
In total, the F-Block Elements make up a total of 30 elements. There are quite a few of them that play roles in the scientific community due to their relatively unique properties. These elements tend to be some of the less discussed elements on the table, however, compared to the other elements in the main groups.
What are the characteristics of the F block?
Among the general characteristics of the f block elements are the following: They are usually heavy metals. These elements have a generally higher melting and boiling point. They display a variety of oxidisation states.
What are the d and f blocks?
The d and f Block elements in the groups of 3 to 11 are also called as transition elements and inner transition elements respectively. 4f and 5f orbitals of f-block elements are steadily in later of two long periods. Based on this they are differentiated in lanthanides and actinides. The d block elements which are transition elements have partially filled (n-1) d-orbitals. The position in the periodic table of an element is highly reflective of its properties and nature. Let us learn more about the position in the periodic table.
What is the position of the D block in the periodic table?
The d block position in the periodic table consists of elements in the group of 3 to 12. In this group, the d orbitals are filled progressively. The elements which are present between the s and p block elements in the modern periodic table are called the transition elements. Transition elements usually have partly filled (n-1) d-orbitals.
What is the last electron in a transition element?
In the transition elements, the last electron usually enters the penultimate d orbitals i.e. (n-1) d orbitals and that is why they are called d-block elements in the modern periodic table.
Which elements are considered to be p-block elements?
P-block: P-block elements include the last six element groups of the periodic table, excluding helium. The p-block elements include all of the nonmetals except for hydrogen and helium, the semimetals, and the post-transition metals.
What are element blocks?
Element blocks are named for their characteristic orbital, which is determined by the highest energy electrons: S-block: The first two groups of the periodic table, the s-block metals: Are either alkali metals or alkaline earth metals. Are soft and have low melting points. Are electropositive and chemically active.
What are the two groups of metals?
S-block: The first two groups of the periodic table, the s-block metals: 1 Are either alkali metals or alkaline earth metals. 2 Are soft and have low melting points. 3 Are electropositive and chemically active.
What is a D block?
D-block elements behave in a manner that is somewhere between that of highly reactive electropositive alkali metals and the covalent compound forming elements (which is why they are called "transition elements"). Have high melting and boiling points. Typically form colored salts. Are generally good catalysts.
How to group elements?
One way to group elements is by element blocks, sometimes known as element families. Element blocks are distinct from periods and groups because they were developed based on a very different way of categorizing atoms.
What elements are involved in the chemical interaction?
Include carbon, nitrogen, oxygen, sulfur, halogens, and many other common elements. Interact with other chemicals by losing, gaining, or sharing the valence electrons. Mostly form covalent compounds (though the halogens form ionic compounds withs-block metals).
Definition of F-Block Elements
Classification of F-Block Elements
- [Click Here for Sample Questions] Lanthanides and actinides are the two series of the f-block elements or inner transition elements. 1. Lanthanide series: The first series of elements are the lanthanides which include elements with atomic numbers from 57 to 71. These elements are non-radioactive (except for promethium). In the lanthanide series the...
Similarities Between Lanthanides and Actinides
- [Click Here for Sample Questions] In the first series (lanthanides) of the inner transition elements, the filling of the last electron takes place to the 4f orbital. After lanthanum 14 elements are there, since these elements are after lanthanum the series has been called the lanthanide series. The elements occurring after lanthanum (LA) are Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, L…
Difference Between Lanthanides and Actinides
- [Click Here for Sample Questions] Some of the differences between Lanthanoids and Actinoids have been given below.
Uses of Inner F-Block Elements
- [Click Here for Sample Questions] Some of the important uses of Inner Transition Metals are given below: 1. Lanthanides are used for the production of lasers. 2. Inner Transition Elements (f-block elements) are used for the determination of age of rocks and fossils. Elements like Samarium and Lutetium are used for this purpose. 3. Inner Transition elements are also used for the developm…
Things to Remember
- [Click Here for Sample Questions] 1. The topic “F-Block Elements” is covered in the Unit 3 i.e, Classification of Elements and Periodicity in Properties of NCERT Class 11 Chemistry. 2. The entire unit 3 will carry a weightage of 6 periods and around 4 marks in the exam. 3. The block of elements is called inner transition metal. 4. F-block elements are called inner transition element…
Sample Questions
- Ques. What is the other name used for inner transition metals?(1 mark) Ques. Do Inner Transition Metals React? (2 marks) Ques. Why are the transition metals unique?(2 marks) Ques. What is the meaning of transition elements?(2 marks) Ques. Why is the actinoid contraction greater from element to element when compared to lanthanoid contraction?(2 marks) Ques. What are the cha…