the atom or ion that has highest number of unpaired electron is a). Na+ b). F c).N d). O2- e). B
Dear student
a)Na+ has electronic configuration 1s22s22p6, ,hence it has no unpaired electron.
b)F has configuration 1s22s22p5, so it has one unpaired electron.
c)N has configuration 1s22s22p3, it has 3unpaired electrons,
d)O2- has configuration, 1s22s22p6, it has no unpaired electron.
e)B has configuration, 1s22s22p1, it has one unpaired electron.
N thus has maximum 3 unpaired electrons.
Regards
a)Na+ has electronic configuration 1s22s22p6, ,hence it has no unpaired electron.
b)F has configuration 1s22s22p5, so it has one unpaired electron.
c)N has configuration 1s22s22p3, it has 3unpaired electrons,
d)O2- has configuration, 1s22s22p6, it has no unpaired electron.
e)B has configuration, 1s22s22p1, it has one unpaired electron.
N thus has maximum 3 unpaired electrons.
Regards