atomic number
Sodium, symbol Na, has an atomic number and is number eleven on the periodic table of elements. Therefore, sodium has eleven protons.
the number of helium in the periodic table is 2.
Number 81 on the periodic table is Thallium.
Number 38 on the periodic table is Strontium.
Gold is number 79 on the periodic table
The elements arranged according to their atomic number in the table are called periodic table.
The number of each period in the modern periodic table represents the number of shells. There are 7 periods in periodic table.
It is number 56 on the Periodic Table of Elements
According to the modern periodic table "Elements are the periodic function of their atomic number".They are arranged in increasing atomic no. in the periodic table.
The periodic table is arranged by the Atomic Number
No one give number to elements in periodic table. they have been calculated