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It tells you how many protons an atom of an element has. It is the basis of the arranegement of the Periodic Table and has taken the scientific world a long time to discover. About 1860 C. E. Mendeleyev published the first such table.

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Related Questions

Why do we need atoms?

According to modern Periodic Table Atomic numbers are the fundamentals in order to explain the properties of an atom.One thing more and that is the concept of isotopes also make the atomic masses less strong to explain atomic properties which has no effect on atomic numbers.


What element has the atomic number for 3.14?

No element has this atomic number. All atomic numbers are whole numbers.


What is an example of atomic numbers?

Atomic number= number of protons. Hydrogen atomic number=1


What is a non example of a atomic number?

Only the counting numbers can exist as atomic numbers. Fractions and decimals cannot be an atomic number.


Why do elements of even atomic numbers are more abundant than that of odd numbers?

Elements with even atomic numbers are more abundant than those with odd atomic numbers because of nuclear stability. Elements with even atomic numbers have equal numbers of protons and neutrons, resulting in more stable nuclei due to pairing effects. This stability makes it easier for elements with even atomic numbers to be formed through various nuclear processes, leading to their higher abundance compared to elements with odd atomic numbers.


What are the atomic numbers of boron?

The atomic number of boron is 5.


Can you have a fractional atomic number?

No, fractional atomic numbers do not exist in the context of the periodic table. Atomic numbers represent the number of protons in an atom's nucleus, and since protons are whole particles, atomic numbers must be whole numbers. However, in certain advanced theoretical contexts, such as in particle physics or discussions about isotopes, concepts may arise that involve fractional charges or effective numbers, but these do not change the fundamental nature of atomic numbers as integers.


Who made atomic numbers?

M.GMosly found the atomic number. Atomic number is equals to protons.


What is starches atomic number?

starches is a compound. Copouds does not have atomic numbers.


How elements arranged according to increasing atomic number?

atomic numbers


How many atomic numbers does oxygen has?

The atomic number for Oxygen is 8.


Does STONE have an atomic number?

No, stones are typically made up of minerals or compounds which do not have atomic numbers. Atomic numbers are unique identifiers for elements in the periodic table.