So you can classify the elements into groups.
the Periodic Table is useful because it explains the properties of an element.
Gridley-R.A
Periodic Table is used to classify elements. it makes study of elements easier.
it is 56 because you round it of and it used to be 55.85
Iron.
Calcium
Periodical chart
about 106 are on a periodic table for the very time being
Because it is an element.
The periodical beeping was driving us insane.
alkaline earth metals
Dmitri Mendeleev
Na is an element found on the periodical table. It is the chemical symbol for Sodium.
Sulphur/ Sulfur --> S (in capital letter) in the periodic table
7