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The periodic elements is arranged by?
Mass number - the number of protons and neutrons present in the nucleus.
What is the contribution of Henry moseley in periodic tale of elements?
He found the number of protons an element has. present periodic table is according to it.
How are the elements arranged?
Elements are arranged on the periodic table based on their atomic number, which is the number of protons in their nucleus. This arrangement groups elements with similar properties in columns called groups or families, while elements in the same period have the same number of electron shells.
Why did they number elements on periodic table?
No one give number to elements in periodic table. they have been calculated
The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?
If the elements are arranged in the order of their increasing atomic numbers, there properties are repeated in a periodic manner.
How is the periodic table organized according to Moseley?
It is about the atomic number. the number of protons.
What is the maximum number of valence electrons that an atom can have excluding hydrogen helium and beryllium?
The maximum number of valence electrons that an atom can have is 7, as seen in elements such as fluorine, chlorine, and bromine. These elements are in group 7A of the periodic table, also known as the halogens.
The periodic table is based on an element's what?
The periodic table is based on an element's atomic number, which is the number of protons in the nucleus of an atom. Elements are arranged in order of increasing atomic number, which also dictates their unique placement in the periodic table.
How are the elements listed by their chemical formula?
The elements are listed in the periodic table based on their chemical properties and atomic structure. The chemical formula represents the elements present in a compound, with the symbols of the elements and subscript numbers indicating the ratio of atoms. The elements are arranged in the periodic table in order of increasing atomic number.
Why has the periodic able set out the way it is?
All the elements have unique atomic number. The properties of elements are periodic after certain atomic number.
How is the periodic table is organized into columns called?
The elements arranged according to their atomic number in the table are called periodic table.
What are the elements in the periodic table based on?
Atomic Number
