#title noble gases, chemistry, Chemistry

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why they are called noble gases

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The expression for bohr''s radius of an atom is, The expression for Bohr's ...

The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2                         (2) r= n 2 h 2 / 4 Π me 2 z 2           (3) r=  n2h2/4 Π me 3

Calculate the feed rate of water, Liquid-liquid extraction is used to separ...

Liquid-liquid extraction is used to separate acetone and MIBK. A mixture of acetone and MIBK is fed to a mixing tank at a rate of 100 kg/min. Pure water is also fed to the tank and

In bohr''s model, In Bohr's model, atomic radius of the first orbit is γ th...

In Bohr's model, atomic radius of the first orbit is γ the radius of the 3rd orbit, is: (1) γ/ 3 (2)γ (3) 3γ (4) 9γ Ans:  9γ

Calculate ionic products of water(kw) at a given temperature, It looks at h...

It looks at how the ionic product varies with temperature, and how that ... page, we shall calculate the concentration of hydroxonium ions present in pure water. Kw is called

1, Briefly tell me about chemical combination and its laws

Briefly tell me about chemical combination and its laws

S block element ., discuss the structure of beryllium chloride Becl2.

discuss the structure of beryllium chloride Becl2.

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