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the energy of an electron in the first bohr orbit of h atom is-136ev the possible energy values of the excited states for electrons in bohr
the nucleus of an atom can be assumed to be spherical the radius of the nucleus of mass number 7 is given by 125x 10-13 a 13 cm radius of
in a bohrs model of atom when an electron jumps from n 1 to n 3 how much energy will be emitted or absorbed1 215 x10-11
the ratio of the energy of a photon of 2000aring wavelength radiation to that of 4000aring radiation is1 14
the electronic configuration of a dipositive metal m2 is 2 8 14 and its atomic weight is 56 amu the number of neutrons in its nuclei would be1
the increasing order lowest first for the values of em chargemass for 1 epna
atoms consists of protons neutrons and electrons if the mass of neutrons and electrons were made half and two times respectively to their
which of the following atoms and ions are isoelectronic ie have the same number of electrons with the neon atom1 f-
electronic configuration of deuterium atom is1 1s1 2 2s2
which of the following sequence is correct as per aufbau principle1 3s lt 3d lt 4s lt
number of unpaired electrons in mn4 is1 3 2 5 3 6 4 4ans
the maximum number of electrons present in an orbit l 3 is1 6 2 8 3 10 4
the orbital angular momentum of an electron in 2s -orbital is1 12 h 2pi
number of nodal centres for 2s orbital1 1 2 0 3 4 4 3ans
orbital angular momentum for a d-electron is1 6h 2pi 2 radic6 2 pi3 12 h 2pi4 radic12h 2pians
p-orbitals of an atom in presence of magnetic field are1 two fold degenerate2 non degenerate3 three fold degenerate4 none of theseans non
the orbital with maximum energy is1 3d 2 5p 3
the correct order of increasing energy of atomic orbitals is1 5p lt 4f lt 6s lt 5d
the atomic orbitals are progressively filled in order of increasing energy this principle is called as1 hunds rule2aufbau principle3 exclusion
electron enters the sub-shell for which nl value is minimum this is enunciated as1 hunds rule2 aufbau principle3 heisenberg uncertainty
following hunds rule which element contains six unpaired electron1 fe 2 co 3 ni 4 crans
aufbau principle is obeyed in which of the following electronic configurations1 1s2 2s2 2p6
which of the following explains the sequence of filling the electrons in different shells1 hunds rule2 octet rule3 aufbau principle4 all of
aufbau principle is not satisfied by1 cr and cl 2 cu and ag 3 cr and mg 4 cu and
energy of atomic orbitals in a particular shell is in the order1 s lt p lt d lt f