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The four quantum number for the valence shell electron or last electron of sodium (Z = 11) is: (1) n =1, l= 1, m= -1, s= -1/2 (2) n =3, l=0, m=0, s= +1/2 (3) n =3,
account for the effects of solvents on the wavelength of absorption of the acetone in terms of the hydrogen bonding properties of the solvent used
Name the chief ore of silver. Explain with chemical equations the extraction of silver from this ore.
what is the stability order of Li2, H2, B2 B.O of Li2 is 1 B.O of H2 is 1 B.O of B2 is also 1 so for stability order u need to see the no of electrons in antibonding orbitals mo
a. 'Hormones are chemical messengers.' Explain? b. Name the main disease caused due to lack of the vitamin and its source in each of the following: A, B 6 and E.
How can the enthalpy of the hydrogenation of benzene be measured from its enthalpy of combustion and the enthalpies of combustion of cyclohexane and hydrogen? Make use of Hess's la
The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV (2)
Determination of accuracy of volume marking on glassware I. PURPOSE OF THE EXPERIMENT To become familiar with the laboratory environment and to acquire skills in accur
Give detail about criteria of purity ?
drive phase rule
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