Home
Class 12
PHYSICS
Atomic number of H-like atom with ioniza...

Atomic number of H-like atom with ionization potential 122.4 V for n = 1 is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

The ionization potential for carbon atom is

The ionisation potential of hydrogen atom is

Compared to first ionization enthalpy of an atom, the second is :

Which of the following atoms has the lowest ionisation potential?

Suppose the energy of a hydrogen- like atom is given as E_(n) = (-54.4)/(n^(2))eV where ninN . Calculate the following: (a) Sketch the energy levels for this atom and compute its atomic number. (b) If the atom is in ground state, compute its first excitation potential and also its ionization potential. (c) When a photon with energy 42 eV and another photon with energy 56 eV are made to collide with this atom, does this atom absorb these photons? (d) Determine the radius of its first Bohr orbit. (e) Calculate the kinetic and potential energies in the ground state.

Explain the following, give appropriate reasons. (i) Ionization potential of N is greater than that of O (ii) First ionization potential of C-atom is greater than that of B-atom, where as the reverse is true for second ionization potential. (iii) The electron affinity values of Be and Mg are almost zero and those of N (0.02 eV) and P (0.80 eV) are very low (iv) The formation of F^(-) . (g) from F(g) is exothermie while that of O^(2-) (g) from O (g) is endothermic.

Number of atoms in 4.25 g of ammonia is