How Are Elements Arranged on the Periodic Table

The modern periodic table lists the elements in order of increasing atomic number the number of protons in the nucleus of an atom. The Same group elements have similar properties and reactivity.


Study The Image Above How Are The Elements Arranged In The Modern Periodic Table

Six years after Mendeleevs death that the final piece of the puzzle fell into place.

. The periodic table was arranged by atomic mass and this nearly always gives the same order as the atomic number. Each group of elements having the same number of valence electrons. These elements tend to show patterns in atomic radius ionization energy and electronegativity.

The s- p- and d-block elements of the periodic table are arranged into these columns or groups.


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