# Organic Chemistry/Periodic table

+----------------------+----------------------+----------------------+
| `<span style="       | \                    | `<span style="       |
| color:green;">`{=htm |                      | color:green;">`{=htm |
| l}1`</span>`{=html}\ |                      | l}2`</span>`{=html}\ |
| **H**                |                      | **He**               |
+----------------------+----------------------+----------------------+
| 3\                   | 4\                   | 5\                   |
| **Li**               | **Be**               | **B**                |
+----------------------+----------------------+----------------------+
| 11\                  | 12\                  | 13\                  |
| **Na**               | **Mg**               | **Al**               |
+----------------------+----------------------+----------------------+
| \                    | `<span style="c      |                      |
|                      | olor:green;">`{=html |                      |
|                      | }35`</span>`{=html}\ |                      |
|                      | **Br**               |                      |
+----------------------+----------------------+----------------------+

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Some of the good news about organic chemistry is that it focuses on a
subset of the periodic table, so there are fewer elements to worry
about. These are the main elements with which we must concern ourselves,
although occasionally a few others will be used in reactions.

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Organic chemistry \> Periodic table

