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An element has electronic configuration 2, 8, 18, 1. If its atomic weight is 63, then how many neutrons will be present in its nucleus: (1) 30 (2) 32 (3) 34
on what basis basic radicals are separated into six groups ?
GROUP 12: ZINC, CADMIUM, AND MERCURY Group 12 substance have the electron design ( n -1) d 10 ns 2 with n =4, 5 and 6 for Zn, Cd and Hg, respectively. They are formally pa
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
general properties,diversity and magnitude of organic compound?
Because Nucleus is composed of protons and neutrons..
Use the given data to construct a thermodynamical Born-Haber-cycle of the formation of potassium chloride from its elements and calculate the lattice energy of potassium chloride.
Problem 1: What do you meant by Gas Chromatography? Show the quantitative applications of gas chromatography. Definition of Gas Chromatography Briefly explain about Q
what are the oxides and halides of d-block elements? mention them groupwise and comment on the stability of their oxidation state.
what is the acidity of phenol?
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