hierarchy
A chronological order
Dmitri Mendeleev is credited with arranging the elements in the periodic table according to increasing weight. He also left gaps for undiscovered elements and predicted their properties, leading to the development of the modern periodic table.
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.
Mendeleev arranged the elements in his periodic table in order of increasing atomic mass while also grouping elements with similar properties together. His periodic table laid the foundation for the modern periodic table we use today.
NO!!! Elements in a Period are arranged by Atomic No. / Proton No. If we take PERIOD 1. . the two elements are Hydrogen and Helium, in that order. H**ydrogen , Hel**ium are NOT in alphabetical order.
Hierarchy is the organizations of persons/church officials arranged one above the other according to rank
A hierarchy
official ranking organisation
Hierarchical
the different of status rank
Hierarchical
That would be a hierarchy.
That is known as a hierarchy. hierarchical
It is the hierarchy of the organisation. Also known as the pecking order.
It is the hierarchy of the organisation. Also known as the pecking order.
It is the hierarchy of the organisation. Also known as the pecking order.
It is the hierarchy of the organisation. Also known as the pecking order.