a) K
b) Mn
c) Ni
d) Sc
Answer: a
Explanation: K = 19 = 1s22s22p63s23p6s1
3s23p6 = m-shell
= k has only 8 electrons in M shell
Related Posts
Which orbital of carbon can absorb photon but not emit it?
If wavelength of photon is 2.2×10^−11m, h=6.6×10^−34Js ,then momentum of photon is
The energy of a photon is given as △E╱atom=3.03∗10^−19 J atom^−1. Then the wavelength (λ) of the photon is.
Ratio of energy of photon of wavelength 3000 Å and 6000Å is
Chloride ion and potassium ion are isoelectronic. Then
Which of the following is not iso electronic
Among the following groupings which represents the collection of isoelectronic species?
Join The Discussion