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Which one of the following groupings represents a collection of isoelectronic species:
(1) NA+, Ca2+, Mg2+
(2) N3, F-, Na+
(3) be, Al3+, Cl-
(4) Ca2+, Cs+,Br
Ans: N3, F-, Na+
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Geometrical or cis-trans isomerism The compounds that have similar molecular formula but differ in the relative spatial arrangement of atoms or groups in space are termed a
1st A group because the oxides and hydrides are alkaline in nature.
Q. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
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