SUMMARY
The effective charge seen by the outermost electron in lithium (Li) is calculated to be 1, based on the formula Zeff = Z - S, where Z is the atomic number (3) and S is the screening constant (2). The ionization energy of the outermost electron in Li is 5.390 eV, which is relatively low due to the effective charge being only 1. This low ionization energy indicates that the outermost electron experiences a weaker attractive force from the nucleus, as it only needs to overcome the pull of one proton.
PREREQUISITES
- Understanding of atomic structure and electron configuration
- Familiarity with the concept of effective nuclear charge (Zeff)
- Knowledge of ionization energy and its significance in chemistry
- Basic grasp of the Balmer formula and its applications
NEXT STEPS
- Research the concept of screening constants in multi-electron atoms
- Explore the Balmer formula and its derivation for hydrogen-like atoms
- Study the ionization energies of other alkali metals for comparative analysis
- Investigate the relationship between effective charge and atomic radius
USEFUL FOR
Chemistry students, educators, and researchers interested in atomic theory, particularly those focusing on ionization energies and electronic structures of elements.