Question

definition: a chart that organizes all known elements into a grid of horizontal rows (periods) and vertical columns (groups or families) arranged by increasing atomic number. sentence: she referenced the periodic table to study the similarities in elemental properties. choose the best answers. how are elements on the periodic table organized? a by groups b by color and smell c by number of electrons d by physical and chemical properties

Explanation:

Elements in the periodic table are organized in horizontal rows (periods) and vertical columns (groups) based on their physical and chemical properties and increasing atomic number. Groups have similar chemical properties due to the same number of valence - electrons.

Answer:

D. by physical and chemical properties