Practice: What is the identity of an element when the effective nuclear charge of its valence electrons is 18 while its shielding constant is 5?
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The Electron Configuration | 18 mins | 0 completed | Learn Summary |
The Electron Configuration: Condensed | 4 mins | 0 completed | Learn |
The Electron Configurations: Exceptions | 13 mins | 0 completed | Learn |
The Electron Configuration: Ions | 7 mins | 0 completed | Learn |
Paramagnetism and Diamagnetism | 9 mins | 0 completed | Learn Summary |
The Electron Configuration: Quantum Numbers | 16 mins | 0 completed | Learn |
Valence Electrons of Elements | 11 mins | 0 completed | Learn |
Periodic Trend: Metallic Character | 4 mins | 0 completed | Learn |
Periodic Trend: Atomic Radius | 11 mins | 0 completed | Learn |
Periodic Trend: Ionic Radius | 7 mins | 0 completed | Learn Summary |
Periodic Trend: Ionization Energy | 12 mins | 0 completed | Learn Summary |
Periodic Trend: Successive Ionization Energies | 11 mins | 0 completed | Learn |
Periodic Trend: Electron Affinity | 8 mins | 0 completed | Learn Summary |
Periodic Trend: Electronegativity | 5 mins | 0 completed | Learn |
Periodic Trend: Effective Nuclear Charge | 14 mins | 0 completed | Learn |
Periodic Trend: Cumulative | 13 mins | 0 completed | Learn |
Additional Guides |
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Atomic Radius |
Ionization Energy |
Effective Nuclear Charge (Zeff) measures the force exerted onto an electron by the nucleus.
Moving towards the top right corner of the Periodic Table causes effective nuclear charge to increase.
Example #1: Which of the following represents a chalcogen with the greatest effective nuclear charge?
Example #2: What is the effective nuclear charge felt by an electron in the third shell of an aluminum atom?
Practice: What is the identity of an element when the effective nuclear charge of its valence electrons is 18 while its shielding constant is 5?
Example #3: Using Slater’s Rules, calculate the effective nuclear charge of a 3p orbital electron in calcium.
Practice: In which orbital does an electron in a sulfur atom experience the greatest shielding?
Practice: Rank the following elements by effective nuclear charge, ZEff, for a valence electron: Kr, Se, Ca, K, Ge
Practice: Using Slater’s Rules calculate the effective nuclear charge of the 4d orbital electron in iodine.
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