Periodic Table Trends Quiz

Structure of the Periodic Table

• The periodic table is organized by atomic number (number of protons in an atom's nucleus) and electron configuration
• Elements with similar electron configurations and chemical properties are placed in the same group (vertical column) of the periodic table
• The periodic table is divided into periods (horizontal rows) and groups (vertical columns) to show recurring patterns of elements' properties

Trends Across Periods and Down Groups

• Atomic radius decreases from left to right across a period due to increased nuclear charge
• Electronegativity increases from left to right across a period as atoms become smaller and more electronegative
• Reactivity increases down a group due to the addition of energy levels and decrease in ionization energy
• Metals become more reactive down a group as they lose electrons more easily
• Nonmetals become less reactive down a group as they gain electrons more easily

Ionisation Energy and Electron Configuration

• Successive ionisation energy data shows a significant increase when an electron is removed from a full energy level or subshell
• Ionisation energy decreases down a group as electrons become easier to remove due to added energy levels
• Electron configuration determines the energy level and subshell of electrons, influencing ionisation energy values
• Ionisation energy data can be used to infer an atom's electron configuration

Test your knowledge of the periodic table and its trends with this quiz! From atomic radii to electronegativities, this quiz will challenge your understanding of how elements are organized based on their properties. Get ready to identify patterns across periods and groups, and showcase your knowledge of groups 1, 2, 13-18.