Some good questions about Periodic Table:
where are metalloids placed?
why group 18 elements are inactive?
How many groups and periods are in periodic table?
How reactivity changes across and down the group?
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
Some people have suggested that Dmitri Mendeleev did first organize elements in a periodic table in a dream.
Studying physical and chemical properties of chemical elements it is possible to recognize some trends in the periodic table.
Metal is located throughout the periodic table. The periodic table is based on atomic weight. Metals range from some of the lightest to the heaviest of elements.
noble elements are the stable elements. They are found in group 18 in the periodic table.
the periodic table has no compounds it is a table of elements.
there are about 125 or120 and some haven't even been discovered yet. so there's a good number of elements in the periodic table
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
Some are, some are not.
No element in the periodic table begins with the letter J.
No element is excluded from the table.
Some people have suggested that Dmitri Mendeleev did first organize elements in a periodic table in a dream.
The periodic table has nothing to do with planets but some of the planets name are on it.Plutonium= Pluto Neptunium= Neptune Uranium= Uranus Mercury= MercuryTada these are the planets on the periodic table
Studying physical and chemical properties of chemical elements it is possible to recognize some trends in the periodic table.
The term "periodic" in the periodic table refers to the repeating patterns of chemical and physical properties of elements that occur across each period (row) in the table. This periodicity is based on the number of electrons in the outer energy level of the elements.
you read it from left to right
A table in which properties of elements are repeated after some interval.