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Ions which have the same electronic configuration are those of:
(1) Lithium and sodium
(2) Sodium and potassium
(3) Potassium and calcium
(4) Oxygen and chlorine
Ans: Potassium and calcium
The orbital with maximum energy is: (1) 3d (2) 5p (3) 4s (4) 6d Ans: 6d
Electronegativity may be described as the power of an atom to attract electrons to itself in a chemical bond. It is the most important chemical parameter in calculating the type of
Given that the solubility product of calcium fluoride in water at 298K is 0.00000000004.Calculate the solubility of this calcium fluoride at this temperature. Assume the Debye-Huck
The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
explain industrial manufacturing process of westron and explain the advantages and disadvantages of westron
Which of the following statements is not correct for an electron that has the quantum numbers n=4 and m =2: (1) The electron may have the quantum number s= +1/2 (2) The e
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The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV (2)-6.8 eV (3) -1.7 eV
Nuclei tend to have more neutrons than protons at high mass numbers because: (1) Neutrons are neutral particles (2) Neutrons have more mass than protons (3) More neut
Explain Peroxide-promoted addition Peroxide-promoted addition is in competition with normal addition and rearrangement. The normal processes happen at the same rate at which t
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