Periodic table
What is the Periodic Table?
The Periodic Table is a chart that shows all the elements in the world, neatly arranged in a pattern.
Elements are basic substances that make everything around us(like oxygen, water, iron, gold).
How is the Periodic Table arranged?
Rows → called Periods
Columns → called Groups
Elements in the same group have similar properties
What information does each element show?
Each element box has:
Symbol (short name) → H, O, Na
Name → Hydrogen, Oxygen, Sodium
Atomic number → number of protons
Example:
Oxygen → helps us breathe
Types of Elements
Metals – iron, copper (hard and shiny)
Non-metals – oxygen, carbon
Metalloids – have properties of both
Why is the Periodic Table important?
Helps scientists understand substances
Helps us learn how elements react
Used in science, medicine, and technology
Fun Facts
The table works like a map of matter