Organic Chemistry Tutorials

Drugs are small molecular weight compounds (<500) that in moderate doses show a therapeutic (beneficial) effect and in high doses show harmful effects. They interact with the macromolecular targets (carbohydrates, proteins, fats and nucleic acid) to produce a biological response.

If all the elements were to create a gated community for themselves; they would build four apartment blocks namely, the s-block, p-block, d-block and the f-block. The elements having similar property would be grouped together occupying one block and this behavior is based on the orbital the last electron chooses to enter.