First 36 Elements Periodic Table

This periodic-table grid places hydrogen through krypton in their standard groups and periods. The empty spaces are deliberate: they show that the early periods do not contain every group. Element symbols make the table useful as a classroom reference, while the atomic-number color scale reinforces the ordering principle behind the table. A focused first-36 version is easier to read at card size than a full reference table. For a chemistry lesson, add only the property labels that support the activity, such as group names or atomic numbers, so the grid remains legible. Review the underlying definitions and totals before using this view to make an operational decision.