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If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
what is chemistry
Preparation Of Raw Materials For Processing All the incoming raw materials, including packaging materials, should be evaluated and monitored to prevent potential contamination
Which of the metal ion will have highest number of unpaired electrons: (1) Cu + (2) Fe + (3) Fe 3+ (4) Co 2+ A
jack prepared copper(11) sulphate by adding a metal oxide to the acid. jill prepared sodium chloride by acid/alkali reaction. name the metal oxide and acid jack would use to mak
The nucleus of an element contains 9 protons. Its valency would be : (1) 1 (2) 3 (3) 2 (4) 5 Ans: 1
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If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
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