Interactive periodic table matching the exact format given in GCSE exams. Click any element for details. Download as PDF for offline revision.
Use the number at the bottom of each element box to calculate relative formula mass (Mr) for compounds.
The group number tells you the number of outer shell electrons (except transition metals).
Group 1 metals get more reactive down the group. Halogens get less reactive down Group 7.
Found in the middle of the table. They have high melting points and can form coloured compounds.
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