Advertisements
Advertisements
प्रश्न
What is the effective nuclear charge?
उत्तर
The net nuclear charge experienced by valence electrons in the outermost shell is called the effective nuclear charge.
Zeff = Z – S
Where Z = Atomic number
S = Screening constant calculated by using Slater’s rules.
APPEARS IN
संबंधित प्रश्न
Various successive ionisation enthalpies (in kJ mol-1) of an element are given below.
IE1 | IE2 | IE3 | IE4 | IE5 |
577.5 | 1,810 | 2,750 | 11,580 | 14,820 |
The element is
Which one of the following is the least electronegative element?
The element with positive electron gain enthalpy is
The electronic configuration of the atom having maximum difference in first and second ionisation energies is
Which of the following orders of ionic radii is correct?
Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group?
Magnesium loses electrons successively to form Mg+, Mg2+ and Mg3+ ions. Which step will have the highest ionisation energy and why?
In what period and group will an element with Z = 118 will be present?
Explain the periodic trend of ionisation potential.
Explain the following, give an appropriate reason.
Ionisation potential of N is greater than that of O