an element be M is converted to M^- having its electronic configuration (2,8) so it must be belong to 17th group and 2nd period??? explain if yes or no
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Answers
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the anion m^- has been formed by gaining electrons and all the elements of group 17 gain electrons so it can lie in group 17
since its electronic configuration become 2,8 hence it can be in period 2
yes, it must belong to group 17 period 2...
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Answer:
Modern periodic law states that the physical and chemical properties of elements are a periodic function of their atomic numbers i.e., if the elements are arranged in the order of their atomic numbers, the elements with similar properties are repeated after definite regular intervals.
Concept Insight: The elements are characterized by their atomic number as well as atomic weight. Modern periodic law uses atomic number which is number of protons or number of electrons present in an atom of an element.