The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

GCSE Combined Science Atomic structure and the periodic table learning resources for adults, children, parents and teachers.

GCSE Chemistry (Single Science) Atomic structure and the periodic table learning resources for adults, children, parents and teachers.

The chart shows that atomic size and mass for the first 20 elements in the periodic table. The size of the atoms and their mass has a lot to do with the density of the substance; Another factor is how ...