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The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons. a. What is its mass number. b. Write the full symbol of this atom.
The galvanic cells in which electrodes are made of same metal but they are immersed in the electrolytes of different concentrations in two half cells are called concentration cells
During a flame test why is calcium''s flame not persistent, while that of strontium is? Ans) Because it does not have many ions as compared to the Strontium. It is the ions whic
general properties,diversity and magnitude of organic compound?
Q. Illustrate the structure of Alkanes? Ans. Alkanes have the general formula C n H 2n+2 . This means that for every n atoms of carbon, there are 2n + 2 atoms of hydrogen.
Why magnesium does not impart any colour to Bunsen flame while calcium does
Elements of Group 13 are namely, boron, aluminium, gallium, indium and, thallium. While studying the alkali and alkaline earth metals, you have seen that all the elements of these
Synthesis of di and tri substituted benzenes
Which of the following set of quantum numbers is correct for the 19th electron of chromium: n l m s (a) 3 0
Aldol condensation - Aldehydes and Ketones (a) This reaction occurs between two molecules of carbonyl compounds; one molecule should have at least two α-hydrogen sets. In that
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