Hydroxides of 3rd Periods Elements||NaOH|Mg(OH)2|Al(OH)3||Si(OH)4||H2SO4|H3PO4||HClO4 #pashtolecture

Hydroxides of 3rd Periods Elements||NaOH|Mg(OH)2|Al(OH)3||Si(OH)4||H2SO4|H3PO4||HClO4 #pashtolecture

This Pashto video lecture we learned about the hydroxides of 3rd periods elements

The hydroxides of 3rd period elements show a trend in acidity and basicity:

## Basic Character Decreases
1. *NaOH (Sodium Hydroxide)*: Strongly basic
2. *Mg(OH)₂ (Magnesium Hydroxide)*: Weakly basic
3. *Al(OH)₃ (Aluminum Hydroxide)*: Amphoteric (can act as both acid and base)

## Acidic Character Increases
1. *Si(OH)₄ (Silicic Acid)*: Weakly acidic
2. *H₃PO₄ (Phosphoric Acid)*: Weak acid
3. *H₂SO₄ (Sulfuric Acid)*: Strong acid
4. *HClO₄ (Perchloric Acid)*: Strong acid

## Trend Explanation
1. *Metallic character decreases*: As we move from left to right in the period, the elements become less metallic and more non-metallic.
2. *Electronegativity increases*: Non-metals tend to form acidic oxides and hydroxides.

This trend reflects the changing nature of elements from metals to non-metals across the period.

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Видео Hydroxides of 3rd Periods Elements||NaOH|Mg(OH)2|Al(OH)3||Si(OH)4||H2SO4|H3PO4||HClO4 #pashtolecture канала Xplore The World of Chemistry