⚗️ Periodic table for kids
Everything is made of about 118 simple ingredients, called elements. Tap one to see its card, or light up a whole family at once.
Setting out the elements…
The periodic table puts the elements in order of their atomic number, which is how many protons are in each of their atoms. Elements in the same column behave in alike ways, which is why chemists could use the table to guess elements nobody had found yet. The two rows at the bottom belong in the gaps in the table, and are pulled out so it fits on a page.
The names, symbols, numbers and layout are the IUPAC periodic table, and the masses are rounded from its standard atomic weights. A number in [square brackets] is the mass of the longest-lasting form of an element that has no stable form. Nothing you do here is saved or sent. A good next step is the science fair project picker.