Atomic number on the basis of Modern periodic law as on the view of Henry Mosely
Mendeleev used the increasing atomic mass of elements to arrange them in rows on the periodic table. This allowed for elements with similar properties to be grouped together and for the gaps to be left for undiscovered elements.
Elements on the far left side of the periodic table will have the property of being highly reactive and easily losing electrons to form positive ions.
The element 'H' is hydrogen, and is NO. 1 in the Periodic Table.
The exact atomic mass of an element cannot be predicted solely based on its position in the periodic table and can vary due to the presence of isotopes.
There is NO element in the Periodic Table with the symbol 'Hn'. The nearest is hydrogen (H).
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Henry Moseley founded modern periodic table. He proved that atomic number is the fundamental property to arrange the elements.
No it's arrange by the atomic number and family element name...
He arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
Francium followed by cesium
Mendeleev used the increasing atomic mass of elements to arrange them in rows on the periodic table. This allowed for elements with similar properties to be grouped together and for the gaps to be left for undiscovered elements.
The periodic table is arranged by the Atomic Number
The periodic table used to be arranged by increasing atomic mass. Now, it is arranged by increasing atomic number (number of protons in an atom of element).
This is the number of protons.
This is the number of protons.
The element abbreviated with As on the periodic table is Arsenic
Elements on the far left side of the periodic table will have the property of being highly reactive and easily losing electrons to form positive ions.