Skip to main content

Periodic Trend: Effective Nuclear Charge definitions Flashcards

Back
Periodic Trend: Effective Nuclear Charge definitions
1/15
  • Effective Nuclear Charge

    Net attractive force on an electron from the nucleus, accounting for electron repulsion.
  • Shielding Effect

    Reduction in nuclear attraction on an electron due to repulsion by inner electrons.
  • Valence Electrons

    Electrons in the outermost shell of an atom, involved in chemical bonding.
  • Atomic Number

    Number of protons in an atom's nucleus, determining its element.
  • Shielding Constant

    Number of inner electrons reducing the effective nuclear charge on valence electrons.
  • Periodic Trend

    Pattern observed in the periodic table, such as increasing effective nuclear charge across periods.
  • Principal Quantum Number

    Symbolized as n, it indicates the shell number of an electron in an atom.
  • Electron Configuration

    Distribution of electrons in an atom's orbitals, e.g., 1s2 2s2 2p6.
  • Protons

    Positively charged particles in an atom's nucleus, contributing to atomic number.
  • Nucleus

    Central part of an atom containing protons and neutrons, positively charged.
  • Repulsion

    Force pushing electrons apart due to their negative charges.
  • Attraction

    Force pulling electrons towards the positively charged nucleus.
  • Shell Number

    Indicates the energy level of electrons in an atom, related to distance from nucleus.
  • Core Electrons

    Electrons in inner shells, not involved in bonding, contributing to shielding.
  • Subshell

    Division of electron shells, designated as s, p, d, f, with specific shapes and capacities.