INI

Periodic Table Element Classification Systems - INI

The periodic table element classification systems categorize chemical elements based on their electron configurations and chemical properties according to international standards established by IUPAC. Elements are systematically organized from multiple perspectives including block classification (s, p, d, f), metal/nonmetal/metalloid classification, group classification (Groups 1-18), and period classification (Periods 1-7). These classifications are widely used in various fields such as predicting chemical reactions, understanding elemental properties, education, and industrial applications.

periodic table element classification chemistry IUPAC electron configuration atomic structure

[item.block-classification]
code=block
slug=block-classification
name=Block Classification
description=Element classification method based on electron orbital filling.
subCategories=["s-block","p-block","d-block","f-block"]

[item.metal-nonmetal-metalloid-classification]
code=metal-nonmetal
slug=metal-nonmetal-metalloid-classification
name=Metal, Nonmetal, and Metalloid Classification
description=Classification method that categorizes elements into metals, nonmetals, and metalloids.
subCategories=["metals","nonmetals","metalloids"]

[item.group-classification]
code=group
slug=group-classification
name=Group Classification
description=Element classification by vertical columns (Groups 1-18) of the periodic table.
subCategories=["group-1","group-2","group-3-to-12","group-13","group-14","group-15","group-16","group-17","group-18"]

[item.period-classification]
code=period
slug=period-classification
name=Period Classification
description=Element classification by horizontal rows (Periods 1-7) of the periodic table.
subCategories=["period-1","period-2","period-3","period-4","period-5","period-6","period-7"]

[item.main-group-transition-element-classification]
code=main-transition
slug=main-group-transition-element-classification
name=Main Group and Transition Element Classification
description=Classification method that categorizes elements into main group elements and transition elements.
subCategories=["main-group-elements","transition-elements","inner-transition-elements"]

[item.chemical-family-classification]
code=chemical-family
slug=chemical-family-classification
name=Chemical Family Classification
description=Classification method that names groups of elements with similar chemical properties.
subCategories=["alkali-metals","alkaline-earth-metals","halogens","noble-gases","pnictogens","chalcogens","lanthanoids","actinoids"]