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The electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 z : (1) Oxygen (2) Nitrogen (3) Hydrogen (4) Fluorine Ans: Nitrogen
The shape of P -orbital is : (1) Elliptical (2) Spherical (3) Dumb-bell (4) Complex geometrical Ans: Dumb-bell
how to count two oxidation no. of Cl in Ca(OCl)Cl?
The number of electrons involved in the bond formation of N 2 molecule : (1) 2 (2) 4 (3) 6 (4) 10 Ans: 6
how could i make better the project ion chart paper
For principle quantum numbern= 4 the total number of orbitals having l=3: (1) 3 (2) 7 (3) 5 (4) 9 Ans: 7
The standard free energy change for a reaction is -212.3 kJ mol -1 . If the enthalpy of the reaction is - 216.7 kJ mol -1 , calculate the entropy change for the reaction.
what are valence electrons? and how do you write them?
why in f-block element electronic configuration electrons does not enter in 5d orbital (except for La,Gd,Lu)
Which of the following sets of quantum numbers is not allowed : (1) n=1, l=0,m=0 s= +1/2 (2) n=1, l=1,m=0 s= -1/2 (3) n=2, l=1,m=1 s= +1/2
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