chemistry-class-12-unit-08-chapter-01-d-and-f-block-elements-l-1-5-ljtjh5j-un0

<h3 id="successthe-d--and-f---block-elementssuccess-2"><Success>The d  and f - block elements</Success></h3>
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<table>
<thead>
<tr>
<th>Group</th>
<th>3</th>
<th>4</th>
<th>5</th>
<th>6</th>
<th>7</th>
<th>8</th>
<th>9</th>
<th>10</th>
<th>11</th>
<th>12</th>
</tr>
</thead>
<tbody>
<tr>
<td>Period 4</td>
<td>Sc 21</td>
<td>Ti 22</td>
<td>V 23</td>
<td>Cr 24</td>
<td>Mn 25</td>
<td>Fe 26</td>
<td>Co 27</td>
<td>Ni 28</td>
<td>Cu 29</td>
<td>Zn 30</td>
</tr>
<tr>
<td>Period 5</td>
<td>Y 39</td>
<td>Zr 40</td>
<td>No 41</td>
<td>Mo 42</td>
<td>Tc 43</td>
<td>Ru 44</td>
<td>Rh 45</td>
<td>Pd 46</td>
<td>Ag 47</td>
<td>Cd 48</td>
</tr>
<tr>
<td>Period 6</td>
<td>La-Lu 57-71</td>
<td>Hf 72</td>
<td>Ta 73</td>
<td>W 74</td>
<td>Re 75</td>
<td>Os 76</td>
<td>Ir 77</td>
<td>Pt 78</td>
<td>Au 79</td>
<td>Hg 80</td>
</tr>
<tr>
<td>Period 7</td>
<td>Ac- Lr 89-103</td>
<td>Rl 104</td>
<td>Db 105</td>
<td>Se 106</td>
<td>Bh 107</td>
<td>Hi 108</td>
<td>Mt 109</td>
<td>Os 110</td>
<td>Rg 111</td>
<td>Cn 112</td>
</tr>
</tbody>
</table>
</div>
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<p><img alt="image" src="https://temp-public-img-folder.s3.ap-south-1.amazonaws.com/sathee.prutor.images/subject-images/iitpal/image/chemistry-class-12-unit-08-chapter-01-d-and-f-block-elements-l-1_5-ljtjh5j-un0-145.jpg"></p>
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<h3 id="successphysical-propertiessuccess"><Success>Physical properties</Success></h3>
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<ul>
<li>
<p>As inferred by the name, all transition metals are metals and thus conductors of electricity</p>
</li>
<li>
<p>They possess a high density and high melting points and boiling points.These properties are due to metallic bonding by delocalized d electrons, leading to cohesion which increases with the number of shared electrons</p>
</li>
<li>
<p>The group 12 metals have much lower melting and boiling points since their full d subshells prevent d-d bonding. Hg has a melting point of -38.83 $^{0}C$ (-37.89 $^{0}F$) and is a liquid at room tempetature</p>
</li>
</ul>
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<p><img alt="image" src="https://temp-public-img-folder.s3.ap-south-1.amazonaws.com/sathee.prutor.images/subject-images/iitpal/image/chemistry-class-12-unit-08-chapter-01-d-and-f-block-elements-l-1_5-ljtjh5j-un0-192.jpg"></p>
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<h3 id="successfirst-3d-d-block-seriessuccess"><Success>First (3d) d-block series</Success></h3>
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<h5 id="first-3d-d-block-series--sc-zn">First (3d) d-block Series ( Sc-Zn)</h5>
<p>|   Group  |      3     |     4     |     5     |     6     |     7     |      8    |     9     |     10     |      11     |        12      | <br>
| ——– | —-  —- | —– — | ——–  | ——- - |— – — | – —–  | – — – | — —- - | -  —— - | ——– |
|    At.m. |      21    |     22    |     23    |     24    |     25    |     26    |     27    |      28    |      29     |          30      |
|  Element  |      Sc    |     Ti    |      V    |     Cr    |     Mn    |     Fe    |     Co    |      Ni    |      Cu     |          Zn     |
|  Config. |$3d^14s^2$ |$3d^24s^2$|$3d^34s^2$|$3d^54s^1$|$3d^54s^2$|$3d^64s^2$|$7d^74s^2$| $3d^84s^2$| $3d^{10}4s^1$|$3d^{10}4s^2$|</p>
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<p><img alt="image" src="https://temp-public-img-folder.s3.ap-south-1.amazonaws.com/sathee.prutor.images/subject-images/iitpal/image/chemistry-class-12-unit-08-chapter-01-d-and-f-block-elements-l-1_5-ljtjh5j-un0-259-2956.8.jpg"></p>
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