Ima

Definition:

The periodic table is a chart that shows all the elements in science, arranged in a special order.

How the periodic table is arranged:

• Rows are called Periods ➝ There are 7 periods.

• Columns are called Groups ➝ There are 18 groups.

• Elements in the same group have similar properties.

  
  

Main types of elements:

• Metals – shiny and strong (Iron, Gold)

• Non-metals – dull and light (Oxygen, Carbon)

• Metalloids – have properties of both

  
  

Important facts:

• Hydrogen (H) is the first element.

• Elements are arranged by increasing atomic number.

• Each element has a symbol (O for Oxygen, Na for Sodium).

  
  

Fun fact :

The periodic table is like a map of all building blocks of everything around us!