The elements in the Periodic Table are arranged so that elements in the same group (column) will exhibit certain similar characteristics with others in that same group, but different periods (rows). So you can predict, with a certain degree of confidence, how a certain element may behave by where it is located on the periodic table, based on what you know about how other elements in the same group behave. This is mainly due to the valence electrons (the outermost electrons) being the same configuration as others in the same group. The valence electrons are a big determining factor as how that element will react with other elements.
They do not all behave exactly the same, but similar.
The periodic table of Mendeleev is a rational system of arrangement of chemical elements.
the answer is mendeleev
Lawrencium is a member of the actinoids family, period 7 of the Periodic Table of Mendeleev.
Magnesium is an Alkaline Earth element. It is a metal, and is very reactive.
Periodic table would be complex then. It will make study of elements difficult.
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.
The periodic table of Mendeleev is a rational system of arrangement of chemical elements.
The greatest triumph of Mendeleev's periodic table was his predictions of the existence of the undiscovered elements.
Before the modern periodic table , the concepts for classification of elements were given by Dobereiner , Newland law of octaves ,Mendeleev's periodic table.
Classification of hydrogen is: group 1, period 1 in the periodic table of Mendeleev; hydrogen is the first element in this table.
The atomic number that sodium has in periodic table is 11 and valency is 1. The periodic table is a kind of table that was invented for the better study of elements and other types of compound. It makes the systematic study of elements.
Science is dependent on periodic table. It makes the study of elements easier.
The rows are used to study the change in trends. There are 7 periods in periodic table.
group 13, period 2 It is a metalloid
periodic table
Study them good.
Julius Lothar Meyer devised a classification of elements into a table that accounted for the periodic variation in properties. his table included 56 elements.