What is the shielding effect in atoms?

The screening effect, or shielding effect, is how electrons in the same atom interact with each other. In a single-electron atom (in isolation), the electron is only interacting with the proton; in a multielectron atom, the electrons are both interacting with the proton(s), but also with each other. While electrons are attracted to the protons in the nucleus, they are repelled by the other electrons. This electron-electron repulsion decreases the attractive force of the protons on the electrons.

The shielding effect changes the effective nuclear charge -- effectively decreasing the true nuclear charge. This effect causes atoms to get smaller as you across a period (row) of the periodic table, as well as many other periodic trends observed in the periodic table.

See the Web Links and Related Questions for more information about shielding and periodic trends.
--------------------------------------------------------------------------- keep in mind that different orbitals have varying shielding effciencies depending on their shape and symmetry from greatest effect to least s>p>d>f and the effective nuclear charge can be estimated with good approx. by the Slater's Rule where
Z_eff=Z-S Z_eff= effective nuclear charge Z=nuclear charge S=screening (or shielding) factor
the screening factor is calculated by following the directions given at this website
http://intro.chem.okstate.edu/WorkshopFolder/SlaterRule.html
8 people found this useful
Thanks for the feedback!

What element has the biggest shielding effect in its atom?

The shielding effect of an atom increases as the number of valence electrons become larger. Since, we can deduce that the elements in group 18 have the highest shielding effec (MORE)

What effect does electron shielding have on atomic radius?

Going down a column, atomic radius increases because there are more energy levels. Valence electrons feel a weaker attraction to the nuclear charge due to increased electron s (MORE)

Learn How Atoms Relate to the World Around You

Atoms are fundamental to everything in the world around you. Yet, you may not have a clear understanding of what an atom is. The study of atoms is a part of many scientific ar (MORE)
In Myths

Achilles Shield

Achilles lent his armor to Patroclus so he could join in battle. Patroclus was killed and the victor, Hector, took his famous armor. So. even though Achilles must still fight, (MORE)
In War

What Was Operation Desert Shield?

The aggression of Iraq in 1990 caused a wide range of countries to adopt measures against Saddam Hussein. The events leading up to the Gulf War in 1991 are pretty straightforw (MORE)

The Argon Atom

Anyone who has ever taken a chemistry class has seen a big poster of the period table hanging on the classroom wall. There are a total of 118 elements on the periodic table, b (MORE)

The History of the Atomic Bomb

The history of atomic science began centuries ago when scientists began questioning and looking into the structure of matter. It began with Thales of Miletus (634-546 B.C.), a (MORE)

What are the effects of spirit shields in runescape?

Arcane Spirit Shield: The shield has the same defensive bonuses as the blessed spirit shield, though it also gives a +20 Magic attack bonus. This makes it the off-hand item wi (MORE)

Define shielding effect?

the shielding effect is define as the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell.It is also called screening effe (MORE)