which one of the following groupings represents a
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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the charge of an electron is -16 x10-19c the value of free charge on li ion will be1 36x 10-19c
iso-electronic species is1 f-o-2 2 f-
an element have atomic weight 40 and its electronic configuration is 1s2 2s2 2p6 3s2 3p6 then its atomic number and number of neutrons will be1 18
the nucleus of tritium contains1 1 proton 1 neutron 2 1 proton 3
which one of the following groupings represents a collection of isoelectronic species1 na ca2 mg2 2 n3 f- na3 be al3
which of the following are isoelectronic and isostructuralno-3 co2-3clo-3 so31 no-3 co2-3
the number of electrons in cl- ion is1 19 2 20 3 18 4 35ans
the number of neutron in tritium is1 1 2 2 4 3 4 0ans
tritium is the isotope of1 hydrogen 2 oxygen 3
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