What are Periodic Properties? Explain with Examples.
Answer (1)
Periodic properties are properties of elements that show a regular pattern (trend) across periods and down groups in the periodic table.
Examples:
- Atomic radius: decreases across a period, increases down a group.
- Ionization enthalpy: increases across a period, decreases down a group.
- Electron gain enthalpy: becomes more negative across a period (till group 17).
- Electronegativity: increases across a period, decreases down a group.
- Valency: shows a definite trend based on group number.
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