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the number of electrons in the valence shell of calcium is1 6 2 8 3
the following has zero valency1 sodium2 beryllium3 aluminium4 kryptonans
the magnetic quantum number for an electron when the value of principal quantum number is 2 can have13 values2 values39 values46 valuesans 3
the shape of 2p orbital is1 spherical2 ellipsoidal3 dumb-bell4pyramidalans
the total number of unpaired electrons in d- orbitals of atoms of element of atomic number 29 is1 10 2
which orbital is dumb-bell shaped1 s -orbital 2 p -orbital 3 d
if n 3 then the value of which is incorrect1 0 2 1 3
which of the following sets of quantum numbers represent an impossible arrangement n
the magnetic quantum number specifies1 size of orbitals2 shape of orbitals3 orientation of orbitals4 nuclear stabilityans orientation of
an element has the electronic configuration 1s2 2s2 2p6 3s2 3p2 its valency electrons are1 6 2
principal quantum number of an atom represents1 size of the orbital2 spin angular momentum3 orbital angular momentum4 space orientation of the
the quantum numbers for the outermost electron of an element are given below as n 1 l0 m0 s 12 the atoms is1 lithium2 beryllium3
electronic configuration of h- is1 1s0 2 1s1 31s2
2p orbitals have1 n1 l2 2 n1
the correct ground state electronic configuration of chromium atom is1 ar 3d5 4s1 2ar3d4
correct set of four quantum numbers for valence electron of rubidium z 37 is1 50012
principal azimuthal and magnetic quantum numbers are respectively related to1 size shape and orientation2 shape size and orientation3 size
the electronic configuration of silver atom in ground state is 1 kr3 d 10 4 s1
which one of the following configuration represents a noble gas1 1s2 2s2 2p6 3s2 21s2 2s2 2p6 3s1 3
nitrogen has the electronic configuration 1s2 2s2 2p1x 2p1y 2 p1z and not 1s2 2s2 2p2x 2p1y 2 p0z which is determined by1
the shape of an orbital is given by the quantum number1 n 2
the quantum number which specifies the location of an electron as well as energy is1 principal quantum number2 azimuthal quantum number3 spin quantum
bes 4th electron will have four quantum numbers n l
for an electron if the uncertainty in velocity is delta v the uncertainty in its position delta x is given by1 hm 4 pi delta
according to heisenbergs uncertainty principle the product of uncertainties in position and velocities for an electron of mass 91x 10 -31 kg is1 28x