Atomic number or number of protons.
Atomic Number.
Increasing atomic number.
The periodic law states that when the elements are arranged by increasing atomic number, there will be periodic repetition.
Now modern periodic table is arranged in order of increasing atomic number. The properties are found to be periodic when arranged in this pattern.
number
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.
Dmitri Mendeleev arranged the elements in periodic table according to increasing weight. He found their properties to be periodic when arranged in this pattern.
Mendeleev arranged the elements by increasing atomic mass instead of like today by increasing atomic number.
the elements in the modern periodic table are arranged according to their increasing atomic number.
Increasing atomic number.
The periodic law states that when the elements are arranged by increasing atomic number, there will be periodic repetition.
Now modern periodic table is arranged in order of increasing atomic number. The properties are found to be periodic when arranged in this pattern.
number
Dmitri Mendeleev and Lothar Meyer first arranged the elements in the increasing order of atomic masses. Bohr and Henry Moseley then arranged the elements in the increasing order of atomic number.
Moseley arranged the elements according to increasing atomic number.
The elements are arranged with increasing atomic number
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.
The elements arranged according to their atomic number in the table are called periodic table.