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Atomic Structure & Periodicity

7 terms

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Atomic Structure & Periodicity

Inner Transition Element

An element of the lanthanide or actinide series, in which f orbitals are being filled.

(n−2)f orbitals filling Dimensionless Atomic Structure & Periodicity

Ionic Radius

The effective radius of an ion within a crystal lattice, deduced from measured interionic distances.

pm Atomic Structure & Periodicity

Ionisation Energy

The minimum energy needed to remove the most loosely held electron from one mole of gaseous atoms in their ground state.

X(g) → X⁺(g) + e⁻ kJ/mol Atomic Structure & Periodicity

Isobar

One of a set of atoms of different elements that share the same mass number but have different atomic numbers.

same A, different Z Dimensionless Atomic Structure & Periodicity

Isoelectronic Species

Atoms or ions that possess the same number of electrons and the same electron configuration.

Dimensionless Atomic Structure & Periodicity

Isotone

One of a set of nuclides that contain the same number of neutrons but different numbers of protons.

same N, different Z Dimensionless Atomic Structure & Periodicity

Isotope

One of two or more atoms of the same element that differ in neutron number and therefore in mass.

same Z, different A Dimensionless