Question

3.Number of peaks for 3p orbital
a) 2
b)3
c)4
d)0
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Answer 1

Number of radial nodes = =n−l−1

where n=principal quantum number, l=azimuthal quantum number

For 3p orbital n=3 and l=1

∴ Number of radial nodes for 3p orbital =3−1−1=3−2=1

So, the correct answer is D

Answer 2

The correct option is a.

Given: 3p orbital.

To find: We have to find the number of peaks.

Solution:

For 3p orbital, the principal quantum number n is equal to 3.

For p orbital, the value of the azimuthal quantum number is 1.

Thus the number of radical nodes is n-l-1

$3 - 1 - 1 = 1$

The value of a radical node is 1.

Thus the number of the peak is 1+1=2.

The number of peaks for 3p orbital is 2.