Mendeleev arranged the elements in a table in the increasing order of atomic masses and repeating periodic properties.
In the modern long-form of Periodic Table, the elements are arranged in the increasing order of atomic number and repeating periodic properties.
by their atomic number
total no of elements in periodic table is 112.Some of which are still unnamed. Elements on the periodic table is classifies into metals, non-metals, semiconductors, and elements that are radioactive. Elements are arranged in increasing order of their atomic number. In a periodic table on the left are the metals, on the right are all non-metals and in the middle are the transition metals.
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
noble elements are the stable elements. They are found in group 18 in the periodic table.
The groupings in the periodic table have some simalarities with the card game solitare. All the elements with similar properties are grouped in a vertical group, just as in solitare all cards of the same suit are arranged in a vertical group.
by their atomic number
some guy called Mendeleev
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
Elements are arranged into chemical families by their chemical properties. Some elements don't react, while others are very reactive, and some are good conductors of electricity.
Periodic means repeating. When Mendeleev was rearranging the elements, he noticed that some of their properties matched with one another about every eight elements. Thus, when the elements are arranged in the rows of the Periodic Table, they also have matching properties in each column.
Mendeleev table comprised of elements in order of atomic mass. in moseley's table, elements were arranged in increasing order of atomic number.
total no of elements in periodic table is 112.Some of which are still unnamed. Elements on the periodic table is classifies into metals, non-metals, semiconductors, and elements that are radioactive. Elements are arranged in increasing order of their atomic number. In a periodic table on the left are the metals, on the right are all non-metals and in the middle are the transition metals.
He was bold enough to reverse the order of some pairs of elements and to predict that their atomic masses were incorrect. Some of these predictions were correct, but others were not, because we now know that the fundamental basis of the periodic table is atomic number rather than atomic mass.
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
No all he elements on the Periodic Table are arranged by the atomic number because some element are lighter than other and have more or less protons in the nucleus of the atom( The number of protons in an atom is the atomic number).
the periodic table has no compounds it is a table of elements.
noble elements are the stable elements. They are found in group 18 in the periodic table.