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Q. Explain about Atomic Radius?
The atomic size decreases with increase in atomic number along any period in the long form of the periodic table due to increase in effective nuclear charge. Though, the decrease in atomic radius is small when the difference in electronic configuration from one element to the next is that of an additional inner electron. This is due the additional inner electron screens the size-determining outer electrons from the nucleus much better than an additional outer electron. For example, decrease in the covalent radius from Sc to Zn; i.e., across ten elements of the 3d transition series, is 19 pm. this. Decrease is almost one-third of the decrease in the covalent radius of the seven elements of s and p blocks of the period 3.
Calculate the free energy change of following reaction at298 kelvin H2+I2=2HI if the enthalpy change is 51.8816kj and the entropy change is 166.15j is this reaction thermodyanamica
When the value of azimuthal quantum number is 3, magnetic quantum number can have values: (1) + 1, 0, - 1 (2) + 2, + 1, 0, - 1, - 2 (3) - 3, - 2, - 1, - 0, + 1
Hi, my name is Teesta and I need your help with this question: You are asked to make 1 Liter of 5M Sodium Chloride (NaCl). How many grams of NaCl are needed?
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Are Facial & Meridinal optical active?
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Uses of Benzene - Hydrocarbon (1) In dry cleaning (2) As a motor fuel when mixed with petrol. (3) As a solvent. (4) In the manufacture of gammexane (As insecticide).
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