What is the name for the group of elements indicated by the shaded portion of the periodic table? 
Definitions:
Geographic Segmenting
The practice of dividing a market into distinct groups based on geographical regions, such as countries, states, or cities.
Demographic Segmentation
The process of dividing a market into segments based on variables such as age, gender, income, and education, to enable targeted marketing.
Market Segmentation
The practice of dividing a target market into smaller, more defined categories based on characteristics like demographics, needs, priorities, and common interests.
Chewable Tablet
A form of medication or supplement designed to be chewed before swallowing, making it easier to ingest for those who have difficulty with traditional pills.
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