atomic structure, Chemistry

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what is the mass of a proton and electron

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lewis acid and a lewis base, Draw out the Lewis structures of the followin...

Draw out the Lewis structures of the following two compounds.        BeCl 2 +  2Cl- → (a)  Determine which compound is the Lewis acid and which is the Lewis base.  What are the

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A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.

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The azimuthal quantum number has a value, When the azimuthal quantum number...

When the azimuthal quantum number has a value of l=0 , the shape of the orbital is: (1) Rectangular (2)Spherical (3)Dumbbell (4)Unsymmetrical Ans: Spherical

S block elements, why lithium and beryllium markedly differ from other memb...

why lithium and beryllium markedly differ from other members of their respective groups?

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Which one of the following set of quantum numbers is not possible for 4p  electron : (1) n=4, l=1, m=-1, s= +1/2                 (2) n=4, l=1, m=0, s= +1/2          (3) n=

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