What is the cause of shielding effect?

Shielding is caused by the combination of partial neutralization of nuclear charge by core electrons, and by electron-electron repulsion. The closer an electron comes to the nucleus, or the more it penetrates, the stronger its attraction to the nucleus.

What a shielding effect How does it change across a period?

Shielding effect remains same across a period, that is because the number of shells are same for each element in a period. The shielding effect becomes stronger from left to right. This is most simply explained just by the increased number of electrons.

What is the shielding constant?

The shielding constant for each group is formed as the sum of the following contributions: Each other electron in the same group as the electron of interest shield to an extent of 0.35 nuclear charge units except 1s group, in which the other electron contributes only 0.30.

Which of the following element has highest shielding constant?

Here Gallium has the greatest atomic number, therefore greater shielding effect.

Which of the following is an example of the shielding effect?

The shielding effect is when the electron and the nucleus in an atom have a decrease in attraction which changes the nuclear charge. An example of shielding effect is in nuclear fission when electrons furthest from the center of the atom are pulled away.

Does shielding remain constant across period?

Across a period, effective nuclear charge increases as electron shielding remains constant. This pulls the electron cloud closer to the nucleus, strengthening the nuclear attraction to the outer-most electron, and is more difficult to remove (requires more energy).

Why does shielding remain the same across a period?

Shielding effect is the decrease in the attractive force of the nucleus on tge valence electrons due to inner shell electrons. As we move in period the number of shells remain same, the shielding effect will also remain constant.

Which of the following has highest shielding effect?

The s orbital has the highest shielding effect. The f orbital has the least shielding effect. This is because the presence of the inner-shell electron reduces the force of attraction towards the valence electrons.

Which element has more shielding?

The more electron shells there are, the greater the shielding effect experienced by the outermost electrons. In hydrogen-like atoms, which have just one electron, the net force on the electron is as large as the electric attraction from the nucleus.