Describe and explain the general trend in the following properties across a period:

CHEMISTRY · Multi-part · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

Describe and explain the general trend in the following properties across a period: (a) Atomic radius (b) First ionisation energy (c) Electronegativity.

Related theory

Atomic and ionic radii
Classification of Elements and Periodicity in Properties
Periodicity and atomic number
Periodic Trends in Physical Properties

Browse the problem library