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chem: shielding does not only describe but can directly increase or decrease

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eggy 2020-10-09 14:20:14 -04:00
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@ -129,7 +129,7 @@ Please see [SL Physics#Uncertainty of gradient and intercepts](/sph3u7/#uncertai
!!! definition
- The **effective nuclear charge** ($Z_\text{eff}$) is the net positive charge (attraction to the nucleus) experienced by an electron in an atom.
- **Electron shielding** describes the decrease in the effective nuclear charge of an electron because of the repulsion of other electrons in lower-energy shells.
- **Electron shielding** is decrease in the effective nuclear charge of an electron because of the repulsion of other electrons in lower-energy shells.
**Atomic notation** is used to represent individual atoms or ions. It is written in the form $^M_Z \text{Symbol}^\text{Charge}$, where $M$ is the mass number of the particle and $Z$ is the atomic number of the particle.