dmitri mendelev
yes
atomic numbers
Henry Moseley
by ectron protons and neutrons
Yes
Henry Moseley
In 1869 Russian teacher and scientist Dmitri Mendeleev, presented a periodic table of the elements based on atomic weights. The current periodic table is arranged by the atomic numbers of the elements.
If the elements are arranged in the order of their increasing atomic numbers, there properties are repeated in a periodic manner.
Periodic table is arranged by atomic number. elements are arranged in groups and periods.
basically? how they react.some scientist guy who was good with calculations predicted qualitys of elements like, ages ago, before they were discovered.he basically designed the periodic table.if you notice, its in groupsthe first column, alkali metals, get nasty with water or anything more acidicsodium + water = firesodium + pure sulfuric acid = boom-------------------------------------They are arranged in increasing number of protons, and with respect to the number of electrons in the outer electron shell.
He arranged the elements in the increasing order of atomic mass and repeating periodic properties.
In the modern form of periodic table, all elements are arranged in increasing order of their atomic numbers. The periodic properties of elements are functions of their atomic weights.