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.

Learn about – The P block Elements Class 12 Notes Pdf Download – NCERT Book

**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.

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## 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 | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{1} 4s^{2} |

Yttrium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{1} 5s^{2} |

Lanthanum | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 5s^{2} 5p^{6} 5d^{1} 6s^{2} |

Actinium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 6s^{2} 6p^{6} 6d^{1} 7s^{2} |

### 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 | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{2} 4s^{2} |

Zirconium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{2} 5s^{2} |

Hafnium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{2} 6s^{2} |

Rutherfordium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{2} 7s^{2} |

### 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 | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{3} 4s^{2} |

Niobium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{4} 5s^{1} |

Tantalum | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{3} 6s^{2} |

Dubnium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{3} 7s^{2} |

### 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 | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{5} 4s^{1} |

Molybdenum | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{5} 5s^{1} |

Tungsten | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{4} 6s^{2} |

Seaborgium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{5} 7s^{1} |

### 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

7th Group | Electronic Configuration |
---|---|

Manganese | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{5} 4s^{2} |

Technetium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{5} 5s^{2} |

Rhenium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{5} 6s^{2} |

Bohrium |
1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{5} 7s^{2} |

#### 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

8th Group | Electronic Configuration |
---|---|

Iron | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{6} 4s^{2} |

Ruthenium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{7} 5s^{1} |

Osmium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{6} 6s^{2} |

Hassium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{6} 7s^{2} |

#### 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

9th Group | Electronic Configuration |
---|---|

Cobalt | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{7} 4s^{2} |

Rhodium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{8} 5s^{1} |

Iridium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{7} 6s^{2} |

Meitnerium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{7} 7s^{2} |

#### 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

10th Group | Electronic Configuration |
---|---|

Nickel | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{8} 4s^{2} |

Palladium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 5s^{0} |

Platinum | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{9} 6s^{1} |

Darmstadtium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{8} 7s^{2} |

#### 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

11th Group | Electronic Configuration |
---|---|

Copper | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{1} |

Silver | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 5s^{1} |

Gold | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{10} 6s^{1} |

Unununium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{10} 7s^{1} |

#### 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

12th Group | Electronic Configuration |
---|---|

Zinc | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} |

Cadmium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 5s^{2} |

Mercury | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14} 5s^{2} 5p^{6} 5d^{10} 6s^{2} |

Ununbium | 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 4f^{14 }5s^{2} 5p^{6} 5d^{10} 5f^{14} 6s^{2} 6p^{6} 6d^{10} 7s^{2} |

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