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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.
What else can I help you with?
What do the numbers on the side of the periodic table mean?
The question is vague, but they're probably the periods.
Is the periodic table organized by atomic numbers?
The Periodic Table is.
What are the periodic numbers?
1 to 103
Where is the period number found on the periodic chart of the elemnts?
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.
What do the numbers under the letter mean on the periodic table?
That is the Atomic Number. The atomic number of an element is equal to the number of protons in the nucleus of an atom of the element.
How is the periodic table arranged from left to right?
The periodic table is arranged from left to right in the order of atomic numbers.
How are atomic numbers and mass numbers of elements arranged in the periodic table?
by ectron protons and neutrons
What is the chart arranged according to atomic numbers?
The periodic table.
Are the elements of the periodic table arranged by their neutron numbers?
yes
What are the big numbers called on the periodic table?
The big numbers are atomic numbers. They are equal to number of protons. Elements are arranged in order of increasing atomic number.
What are the order of elements on the periodic table based on?
the elements in the modern periodic table are arrange in the increasing order of their atomic numbers.
What does PLOH mean on the periodic table?
what ploh does mean
