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The number of electrons in the valence shell of calcium is:
Q. in radioactive decay, a nucleus emits an alpha particle and two beta particle successively. show that the final nucleus is an isotope of original nucleus. Ans: Let the mass and
I need organic chemistry exams in pdf form Project Description: Hi, i need someone to get 100 unique organic chemistry exams from US universities and colleges. The needs f
classification of mixture according to particle size, uniform mixture, composed of solute and solvent
Describe the process involved inthe Dewar method of separation of inert gases?
When a molecule is shown by two or more nearly equal structures, which vary in the arrangement of electrons, then the molecule is said to exhibit resonance.
How many ion H2- does have The H2- ion having three electrons. This can be conceived as the combination of a hydrogen atom with a hydride ion (H-). By the aufbau principle, two
What are the Interfacial Defects Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on
Explain construction & working of calomel electrode.
What are the advantaged and disadvantages of a double beam spectrophotometer
properties and uses of pyrogallol
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