Depends on what version you are looking at. The integers going from 1 to around 100 are the atomic numbers of the elements and these are the numbers of protons (= numbers of electrons) in the atom. Numbers which run from 1 to around 250 and are integers are the atomic weights of isotopes, and numbers which are not integers are atomic weights of elements found in nature, which are mixtures of isiotopes.
They help the organization of the periodic table.
Generally the numbers mentioned in the periodic table corresponds to either the atomic number or mass number of the element
The number of period in periodic table.
* There are 110 atomic numbers in the periodic table.
The numbers on the left of the periodic table are the period numbers. Periods are the horizontal rows in the periodic table. The period number is equal to the number or energy levels of an element.
The group numbers are located along the top of the periodic table.
The question is vague, but they're probably the periods.
On the right side of the periodic table.
the modern periodic table is arranged with a lot of numbers and letters.
Silicon is Si on the Periodic table
There is no Rd on the Periodic table
Ai is not an element on the periodic table
The atomic numbers increase as you move from left to right in the same period or row on the periodic table.
You can learn alot from the periodic table like metals/nonmetals and what is there atmoic numbers.
Ca is the symbol for Calcium on the Periodic Table.
Ni is the symbol for Nickel in the Periodic Table.
The number listed for the elements on the periodic table are their atomic numbers, and they refer to the number of protons in the atom.
Group number 3 to 12 of the periodic table are called groups of transition metals.
Usually at the top ... and classically written in Roman numerals.Yes, there are numbers at the top of a periodic table, although they are for the groups/families on the periodic table. Usually the period numbers are found to the left of the periodic table.
In the modern periodic table, the elements are arranged in order of increasing atomic number.
The periodic table was rearranged on the base of atomic number by HENRY MOSLEY!
See the legend of your periodic table; a general rule don't exist.
The periodic table is arranged from left to right in the order of atomic numbers.
On the periodic table Ni represents the element Nickel.
B is the symbol for boron which is an element on the periodic table