Explanation
Bohr’s theory is applicable only to unielectron atoms or ions.
Both He and Li+ contain 2 electrons each.
For 2p, n = 2, l = 1.
cu is 3d104s1 and not 3d94s2
.
Radius of nucleus = 10–15m
Electrons in Na+ = 10, in Ne = 10.
Lyman series lies in the ultraviolet region.
Complete E.C. = 1s22s22p3 i.e. Atomic Nunber. = 7.
1s can absorb photon but not emit it.
Bohr model can explain spectrum of atoms/ions containing one electron.
Radiowaves have maximum wavelength.
Proton is ionized hydrogen.
Electrons are distributed over a lot of space.
If l = 2, m ≠−3.
In (1), each atom has 8 neutrons.
1s should be filled first before filling of 2s starts.
No. of radial nodes in 3p-orbital = (n – l – 1) = 3 – 1 – 1 = 1.
Radius of nth orbit = r0n2.
(d) is uncertainty principle and not Bohr’s postulate.
m = –1 means least value of l = 1. So it cannot be present in s-orbital.
He+ and H both have one electron each.
Please disable the adBlock and continue. Thank you.