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Nuclei contain uncharged neutrons and positively charged protons; these two particles with about the same mass are known as nucleons. The number of protons is the atomic number of an element (Z), and is matched in a neutral atom by the exact number of electrons. The total number of nucleons is the mass number and is specified by a superscript on the symbol of the element. Thus 1H has a nucleus with no neutrons and one proton, 16O has eight protons and eight neutrons, 208Pb has 82 protons and 126 neutrons.
how is back titration graphs drawn
Difference between Natural rubber and Vulcanized Rubber Natural rubber Vulcanized rubber (1) it is soft and sticky Vulcanized
Explain Toluene Toluene has added stability associated with aromaticity; compound A, although conjugated, is not aromatic. Because any equilibrium favours the more stable comp
A reaction among sodium hydroxide and hydrogen chloride gas produces sodium chloride and water and a reaction of 22.85g of sodium hydroxide with 20.82g of hydrogen chloride gives o
Uses of Alkenes (i) Alkenes are used for the manufacture of polythene - a plastic material; (ii) Alkenes are used for artificial ripening of fruits; (iii) Alkenes are us
Consumer testing Consumer testing is the next crucial aspect in product development. Consumer testing can be done in three ways: 1. In-house laboratory testing 2. Ho
acidity of monocaboxylic acid
Difference between activity coefficient and mean activity coefficiet
how we determine the qualitativ and quantitativ analysis of uv
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