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Correct set of four quantum numbers for valence electron of rubidium (Z = 37) is: (1) 5,0,0,+1/2 (2) 5, 1,0,+1/2 (3) 5,1,1,+1/2
Covalent Bond Purely electrostatic attractions between ions are nondirectional, but with increasing covalent character the directional properties of valence orbitals become more
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
Relationship between nucleon number,proton number and the number of neutrons.
why they are called noble gases
Draw the structures of white phosphorus and red phosphorus. Which one of these two types of phosphorus is more reactive and why?
mechanism of make of hexane-1,6-dioic acid by Nitric acid
applications of photochemistry in daily life
what is theory of indicators?
A covalent bond is likely to be formed between two elements which: (1) Have similar electronegativities (2) Have low ionization energies (3) Have low melting points (4
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