The number of `1^(@), 2^(@)`, and `3^(@) H` atoms in 2,5,6-trimethy1 octane, respectively,is

The number of 1^(@), 2^(@) , and 3^(@) H atoms in 3-ethy1-5-methy1 heptane, respectively , is:

The number of 1^(@), 2^(@) , and 3^(@) H atoms in 3-ethy1-5-methy1 heptane, respectively , is:

The number of 1^@, 2^@ and 3^@ carbon atoms present in isopentane are respectively:

In the structure of 4 -Isoropyl- 2,4,5 -trimethylheptane, number of 1^(@),2^(@) & 3^(@) H's are respectively.

In the structure of 4 -Isoropyl- 2,4,5 -trimethylheptane, number of 1^(@),2^(@) & 3^(@) H's are respectively.

The value of IE_(1), IE_(2), IE_(3) and IE_(4) of an atom are respectively 7.5 eV, 25.6 eV, 48.6 eV and 170.6 eV . The electronic configuration of the atom will be

The value of IE_(1), IE_(2), IE_(3) and IE_(4) of an atom are respectively 7.5 eV, 25.6 eV, 48.6 eV and 170.6 eV . The electronic configuration of the atom will be