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Answer :
(a) Number of electrons in an atoms is, 6
(b) Number of electrons in an atoms is, 2
(c) Number of electrons in an atoms is, 14
Explanation :
There are 4 quantum numbers :
Principle Quantum Numbers : It describes the size of the orbital. It is represented by n. n = 1,2,3,4....
Azimuthal Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...
Magnetic Quantum Number : It describes the orientation of the orbitals. It is represented as . The value of this quantum number ranges from . When l = 2, the value of
Spin Quantum number : It describes the direction of electron spin. This is represented as . The value of this is for upward spin and for downward spin.
Number of electrons in a sublevel = 2(2l+1)
(a) 4p
n = 4
Value of 'l' for 'p' orbital : l = 1
At l = 1,
Number of electrons in an atoms = 2(2l+1) = 2(2×1+1) = 6
(b) n = 3, l = 1, ml = +1
As we know that, a sublevel of 'p' orbital can accommodate 6 electrons but 1 orbital can accommodate only 2 electrons. So,
Number of electrons in an atoms for (ml = +1) = 2
(b) n = 5, l = 3
Number of electrons in an atoms = 2(2l+1) = 2(2×3+1) = 14