give reason for the folloing 1.isotopes of an element are chemically similar 2.an atom is electrically neutral 3.noble gases show least reactivity 4.ions are more suitable than atoms 5.na+ has completely filled k and l shells
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(A) isotopes of an element have similar chemical properties and same atomic number only mass number is different
(C) Noble gases show least reactivity as they have a completely filled outermost shell and hence are stable
(D) Atoms tend to be more reactive than ions hence the reason
(E) Na (Sodium ) has completely filled K and L shells as it electronic configuration is 2 , 8 , 1
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(C) Noble gases show least reactivity as they have a completely filled outermost shell and hence are stable
(D) Atoms tend to be more reactive than ions hence the reason
(E) Na (Sodium ) has completely filled K and L shells as it electronic configuration is 2 , 8 , 1
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