Home
Class 12
CHEMISTRY
Calculate the effective nuclear charge e...

Calculate the effective nuclear charge experienced by the 4s electron in potassium atom.

Text Solution

Verified by Experts

The electronic configuration of K atom is
`K_19 = (1s^2) (2s^2 2p^6) (3s^2 3p^6) 4s^(1)`
Effective nuclear charge (Z*) = Z – S
Z* `=19 - [(0.85xx" No. of electron in "(n-1)^(th)" shell" + (1.00" total number of electron in the inner shells")]`
`=19 - [ 0.85 xx (8) + (1.00 xx 10)]`
Z* `= 2.20`
Promotional Banner

Similar Questions

Explore conceptually related problems

What is meant by a group in the Modern Periodic Table? How do the following change on moving from top to bottom in a group? i] Number of valence electrons ii] Number of occupied shells iii] Size of atoms iv] Metallic character of elements v] Effective nuclear charge experienced by valence electrons

According to the classical electromagnetic theory, calculate the initial frequency of the light emitted by the electron revolving around a proton in hydrogen atom.

Effective nuclear charge (Z*) can be calculated by using the formula

Calculate the force experienced on a body of mass 5 kg moves with an acceleration of 4 m//s^(2) .

calculate the frequency of revolution of the electron in the ground state of hydrogen atom.

The electron energy of hydrogen atom in the ground state works out to be - 2.18 xx 10^(-18) J per atom. Calculate what will happen to the position of the electron in this atom if an energy of 1.938 xx 10^(-18) J is supplied to the each hydrogen atom.

Calculate the formal charge on each oxygen atom in ozone.

Two point charges +10muC and -15muC are placed at the vertices A and B of a right angle Delta^("le") ABC, such that AB=0.05m, BC=0.12m . Calculate the result field intensity at the point C. If +100muC of charge is palced at C, then what force will be experienced by the point charge at C?

Calculate the mass of oxygen obtained by complete decomposition of 10kg of pure potassium chlorate (Atomic mass K=39, O=16 and Cl = 35.5) 2KClO_3 to 2KCl + 3O_2