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Dobereiner’s Triads Chlorine, Bromine, Iodine Lithium, Sodium, Potassium PowerPoint Presentation
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Dobereiner’s Triads Chlorine, Bromine, Iodine Lithium, Sodium, Potassium Sulfur, Selenium, Tellurium Calcium, Strontium, Barium. Newland’s Law of Octaves. 8. Sodium 9. Magnesium 10. Aluminum 11. Silicon 12. Phosphorus 13. Sulfur 14. Chlorine. 1. Lithium 2. Beryllium 3. Boron

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Presentation Transcript
slide1

Dobereiner’s Triads

Chlorine, Bromine, Iodine

Lithium, Sodium, Potassium

Sulfur, Selenium, Tellurium

Calcium, Strontium, Barium

slide2

Newland’s Law of Octaves

8. Sodium

9. Magnesium

10. Aluminum

11. Silicon

12. Phosphorus

13. Sulfur

14. Chlorine

1. Lithium

2. Beryllium

3. Boron

4. Carbon

5. Nitrogen

6. Oxygen

7. Fluorine

mendeleev s predictions
Mendeleev’s Predictions

Germanium (Ekasilicon)

Predicted by Mendeleev

72

Gray Metal

5.5

High

GeO2

4.7

GeCl4

1.9

Below 100oC

Actual (1886)

72.6

Gray Metal

5.36

958oC

GeO2

4.70

GeCl4

1.887

86oC

Property

Mass

Physical State

Density (g/ml)

Melting Point

Formula of Oxide

Density of Oxide

Formula of Chloride

Density of Chloride

Boiling Point of Chloride