Element Y is located in the third period

CHEMISTRY · Subjective · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

Element Y is located in the third period. It has a first-ionization energy of 578 kJ mol⁻¹, an electron affinity of −44 kJ mol⁻¹, and an atomic radius of 118 pm. Identify element Y by its chemical symbol.

Related theory

Ionisation enthalpy
Classification of Elements and Periodicity in Properties
Ionisation potential
Periodic Trends in Physical Properties

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