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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.
what is meant by polarizability
Q. Isolation and purification of metals? metals as a group of elements have acquired a unique importance in the modern world. However, nature' does not generally offer us metal
Alkaline earth metals: The elements Be, Mg, Ca, Sr, Ba and Ra belong to II A group. 2. II A group elements are also called alkaline earth metals. 3. The valence electron
Dear sir, We need your consultancy in a technical problem that we are confronting, and we would really appreciate your help We are in the process of implementing the heavy metal an
Ask question #Minimum 100 words acceWhen an electron beam strikes a block of copper, x-rays of frequency 1.07 x 10 19 Hz are emitted. What is the wavelength of these x-rays?pted#
The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
Calculate the force constant of CF4 and SiF4 and compare their relative strengths with each other. The heats of formation of CF 4 and SiF 4 are -1222 kJmol -1 and -1615
Normal 0 false false false EN-IN X-NONE X-NONE p x orbital can accommodate : (1) 4 electrons
preparations and structure borazole?
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