S U P Er Ca Li Fr Ag I Li S Ti C Ex P I Al I D O C I O U S. <------ is not the longest word. actually. N O N Re P Re Se N Ta Ti O Na Li Sm is because there is no Ex or D in the Periodic Table of elements. just to clear things up.
The long form of periodic table has the advantage to present all chemical elements in order of the atomic number; but this form is not usual because is not adequate for printing.
There are 11 protons and 12 neutrons. And that does not depend on the periodic table. Sodium had 11 protons and 12 neutrons long before the periodic table, or even human, beings existed!
Mendeleev arranged the elements in a table in the increasing order of atomic masses and repeating periodic properties. In the modern long-form of periodic table, the elements are arranged in the increasing order of atomic number and repeating periodic properties.
This is the number of protons.
This is the number of protons.
The modern long form of periodic table was constructed by Neils Bohr based on modern periodic law proposed by Moseley.
The long form of periodic table has the advantage to present all chemical elements in order of the atomic number; but this form is not usual because is not adequate for printing.
The history is that Dymitry Mendeleev is the inventer of long time periodic table that's all i know
The modern long form version of the periodic table is now accepted by the IUPAC.
There are 11 protons and 12 neutrons. And that does not depend on the periodic table. Sodium had 11 protons and 12 neutrons long before the periodic table, or even human, beings existed!
it toke 2 years
Mendeleev arranged the elements in a table in the increasing order of atomic masses and repeating periodic properties. In the modern long-form of periodic table, the elements are arranged in the increasing order of atomic number and repeating periodic properties.
August 20, 1864 was when John Alexander Reina Newlands produced the first periodic table of the elements.
The long dashes on Mendeleev's periodic table represent gaps where elements had not yet been discovered but were predicted to exist based on the periodic pattern of elements. Mendeleev used these gaps to accurately predict the properties of the missing elements, leading to the discovery of new elements.
He is the chemical symbol for Helium. In the periodic table we use the chemical symbols to identify elements easily because some elements have rather long names.
This is the number of protons.
This is the number of protons.