On the Periodic Table, there are two numbers for every element: the atomic number and the atomic weight.
The numbers at the top of the square represents the number of protons present in the atom's nucleus of that element. This is called the atomic number. For example, the atomic number for the element Krypton is 36. That means that there are 36 protons in the nucleus. If there were not 36 protons in the nucleus of that atom, that would create the atom of a completely different element. For example, if one proton was to be removed from the nucleus of the atom for the element of Krypton that atom will be an atom of the element bromine.
The number at the bottom of the square represents the number of particles present in the atom's nucleus of that element. This is known as the atomic weight. For example, the atomic weight for the element Krypton is 83.80.
Atomic numbers. They tell how many protons in an atom (naturally-occuring).
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The number of period in periodic table.
The Periodic Table is.
The question is vague, but they're probably the periods.
On the right side of the periodic table.
Ai is not an element on the periodic table
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.
Ni is the symbol for Nickel in the Periodic Table.
The periodic table is arranged from left to right in the order of atomic numbers.
B is the symbol for boron which is an element on the periodic table
On the periodic table Ni represents the element Nickel.
the elements in the modern periodic table are arrange in the increasing order of their atomic numbers.
numbers