The d and f block Elements Class 12 Notes | 12th Chemistry

d and f block elements class 12 notes are an important chapter of an inorganic unit of chemistry class 12. As we know, d and f block elements are also known as transition and inner transition elements. In the modern periodic table, There are four types of blocks. The d and f block is 2nd last and last block and the previous blocks are s and p. If you want to more and more about p block elements, you should read our previous article. Now, Come to the point, first of all, we shall learn d block element means transition elements.

What do you mean by d block elements in brief?

Those elements in which electronic configuration is ended with d-sub orbit, that elements are known as d blocks elements. As we know, there are 7 periods and 18 groups in modern periodic tables but 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 groups elements are in d and f block elements. You should know all 10 groups of this block properly in which all elements are metal.

Groups of d and f block elements

Now, we shall learn all groups of d and f block elements one by one. The 3rd group of modern periodic tables is the 1st group of d-block. Scandium is the 1st element of this group. The 4th group of modern periodic tables is the 2nd group of d-block and Titanium is the 1st element of this group.

The 5th group is the 3rd group of d-block and Vanadium is the 1st element of this group. The 6th group is the 4th group of d-block and Chromium is the 1st element of this group. The 7th group is the 5th group of d-block and Manganese is the 1st element of this group.

The 8th group is the 6th group of d-block and Iron is the 1st element of this group. The 9th group is the seventh group of d-block and Cobalt is the 1st element of this group. The 10th group is the eighth group of d-block and Nickel is the 1st element of this group.

The 11th group is the ninth group of d-block and Copper is the 1st element of this group. The 12th group is the tenth group of d-block and Zinc is the 1st element of this group.

d and f block Elements Class 12 Notes

First of all, we shall learn about the 3rd group. Scandium, yttrium, lanthanides, and actinides series elements are in this group.

3rd Group	Atomic No	Atomic Mass
Scandium	21	44.96
Yttrium	39	88.91
Lanthanum	57	138.9
Actinium	89	227

Now, we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more.

3rd Group Elements	Electronic Configuration
Scandium	1s2 2s2 2p6 3s2 3p6 3d1 4s2
Yttrium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d1 5s2
Lanthanum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d1 6s2
Actinium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 6d1 7s2

4th groups Elements

Now, we shall learn about the 4th group. titanium, zirconium, hafnium, and rutherfordium elements are in this group.

4th Group Elements	Atomic No	Atomic Mass
Titanium	22	47.90
Zirconium	40	91.22
Hafnium	72	178.49
Rutherfordium	104	261

Properties of 4th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

4th Group Elements	Electronic Configuration
Titanium	1s2 2s2 2p6 3s2 3p6 3d2 4s2
Zirconium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d2 5s2
Hafnium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d2 6s2
Rutherfordium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2

5th groups Elements

Now, we shall learn about the 5th group. vanadium, niobium, tantalum and dubnium elements are in this group.

5th Group	Atomic No	Atomic Mass
Vanadium	23	50.94
Niobium	41	92.91
Tantalum	73	180.95
Dubnium	105	262

Properties of 5th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

5th Group	Electronic Configuration
Vanadium	1s2 2s2 2p6 3s2 3p6 3d3 4s2
Niobium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s1
Tantalum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d3 6s2
Dubnium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d3 7s2

6th group Elements

Now, we shall learn about the 6th group. chromium, molybdenum, tungsten, and seaborgium elements are in this group.

6th Group	Atomic No	Atomic Mass
Chromium	24	51.99
Molybdenum	42	95.94
Tungsten	74	183.85
Seaborgium	106	263

Properties of 6th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

6th Group	Electronic Configuration
Chromium	1s2 2s2 2p6 3s2 3p6 3d5 4s1
Molybdenum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s1
Tungsten	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d4 6s2
Seaborgium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d5 7s1

7th Group Elements

Now, we shall learn about the 7th group. are manganese, technetium, rhenium, and bohrium elements are in this group.

7th Group	Atomic No	Atomic Mass
Manganese	25	54.94
Technetium	43	98.91
Rhenium	75	186.20
Bohrium	107	262

Properties of 7th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

7th Group	Electronic Configuration
Manganese	1s2 2s2 2p6 3s2 3p6 3d5 4s2
Technetium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s2
Rhenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d5 6s2
Bohrium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d5 7s2

8th group Elements

Now, we shall learn about the 8th group Iron, Ruthenium, Osmium, and Hassium elements are in this group.

8th Group	Atomic No	Atomic Mass
Iron	26	55.85
Ruthenium	44	101.07
Osmium	76	190.20
Hassium	108	265

Properties of 8th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

8th Group	Electronic Configuration
Iron	1s2 2s2 2p6 3s2 3p6 3d6 4s2
Ruthenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d7 5s1
Osmium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d6 6s2
Hassium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d6 7s2

9th group Elements

Now, we shall learn about the 9th group cobalt, rhodium, iridium, and meitnerium elements are in this group.

9th Group	Atomic No	Atomic Mass
Cobalt	27	58.93
Rhodium	45	102.91
Iridium	77	192.20
Meitnerium	109	266

Properties of 9th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

9th Group	Electronic Configuration
Cobalt	1s2 2s2 2p6 3s2 3p6 3d7 4s2
Rhodium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d8 5s1
Iridium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d7 6s2
Meitnerium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d7 7s2

10th group Elements

Now, we shall learn about the 10th group Nickel, Palladium, Platinum, and Darmstadtium elements are in this group.

10th Group	Atomic No	Atomic Mass
Nickel	28	58.71
Palladium	46	106.40
Platinum	78	195.00
Darmstadtium	110	269

Properties of 10th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

10th Group	Electronic Configuration
Nickel	1s2 2s2 2p6 3s2 3p6 3d8 4s2
Palladium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s0
Platinum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d9 6s1
Darmstadtium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d8 7s2

11th group Elements

Now, we shall learn about the 11th group copper, silver, gold elements are in this group.

11th Group	Atomic No	Atomic Mass
Copper	29	63.54
Silver	47	107.87
Gold	79	196.97
Unununium	111	272

Properties of 11th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

11th Group	Electronic Configuration
Copper	1s2 2s2 2p6 3s2 3p6 3d10 4s1
Silver	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1
Gold	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s1
Unununium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s1

12th group Elements

Now, we shall learn about the 12th group zinc, cadmium, mercury, and ununbium elements are in this group.

12th Group	Atomic No	Atomic Mass
Zinc	30	65.37
Cadmium	48	112.40
Mercury	80	200.59
Ununbium	112	277

Properties of 12th group Elements

we will learn electronic configuration, atomic and ionic radii, physical state, melting and boiling points, and much more also.

12th Group	Electronic Configuration
Zinc	1s2 2s2 2p6 3s2 3p6 3d10 4s2
Cadmium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2
Mercury	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2
Ununbium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2