conductivity

Trends in atomic and physical properties of alkali metals

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A) The electronic configuration(EC) The EC of alkali metal is ns1. They have single electron in their outer most shell. Therefore, their valency is also one. They have a great tendency of losing electron from their outermost orbit. Due to the above reason, they are considered to be the most electropositive elements. For example: Na … Read more

Comparison between white phosphorous and red phosphorous

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S.N Properties White phosphorous Red phosphorous 1. Colour Light yellow Red 2. Smell Light garlic Smelless 3. Physiology Poisonous Non-poisonous 4. Conductivity Bad conductor Semiconductor 5. Density 1.81 g/cm3 2.1 g/cm3 6. Melting point 44ºc 500ºc 7. Ignition temperature 30ºc 240ºc 8. Phosphorescence Glows up in dark Does not glow in dark 9. Solubility in … Read more