There are 7 periods in the modern periodic table.
The modern periodic table has seven periods.
Modern periodic table is invented by Henry Moseley.
The modern Periodic Table arranges elements based on properties. These properties include valence electrons of the elements and density for example.
Atomic mass Atomic number Elemental symbol
Periodic table of elements.
Modern periodic table is based on modern periodic law which states that physical and chemical properties of elemnts are periodic function of their atomic numbers.
modern periodic law
Dmitri Mendeleev developed the modern periodic table in 1869.
7 periods and 18 groups are there on the modern periodic table.
The modern long form of periodic table was constructed by Neils Bohr based on modern periodic law proposed by Moseley.
Yes.The modern Periodic Table is organized by atomic number. The elements properties are found to be periodic.