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How many neutrons are there in an atom of lead whose mass number is 208? 82 126 208 290 none of them QUESTION 8

How many neutrons are there in an atom of lead whose mass number is 208? 82 126 208 290 none of them QUESTION 8 The elements in Group 1A are called the QUESTION 9 The elements in Group 2A are called the

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Ans Ans 8 A lkali metals Group 1A or IA of the periodic table are the alkali metals hydrogen H lithi... blur-text-image

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