Give the exact steps used to make a simple periodic table About this question: how to make a model of periodic table using locally available materials

Collect the following:

• A large piece of cardboard (e.g., from a delivery box, poster board) for the base.
• Smaller pieces of paper or cardstock (e.g., index cards, construction paper, cut-up cereal boxes) for the element squares. Different colors can be used to represent different groups (metals, nonmetals, metalloids).
• Ruler
• Pencil
• Markers or pens
• Scissors or a craft knife
• Glue or tape

Lay out your large cardboard piece. This will be the background for your periodic table. You might want to lightly sketch the general outline of the periodic table's shape to help with spacing, ensuring you leave room for the lanthanides and actinides at the bottom.

Using your ruler and pencil, measure and cut out approximately 118 small, uniform squares or rectangles from your smaller pieces of paper/cardstock. A size of about 5x5 cm (2x2 inches) per square works well. If using different colored papers, assign colors to represent different categories of elements (e.g., blue for metals, green for nonmetals, yellow for metalloids).

On each individual square, write the essential information for one element. For each element, include:

• Atomic Number (top left corner)
• Element Symbol (large and centered)
• Element Name (below the symbol)
• Atomic Mass (bottom center, optional but recommended) You can find this information from an existing periodic table online or in a textbook.

Carefully arrange the completed element squares onto your cardboard base according to the standard periodic table layout. Start with Hydrogen (H) in the top left, Helium (He) in the top right, and continue row by row. Ensure correct placement for the transition metals, lanthanides, and actinides. Once you are satisfied with the arrangement and spacing, glue or tape each square securely to the cardboard base.

Once all elements are attached, use a marker to add a title at the top (e.g., "The Periodic Table of Elements"). You can also add labels for groups (e.g., "Alkali Metals," "Halogens," "Noble Gases") and periods (1-7) along the sides if desired.