When Moving Down a Group (Family) in the Periodic Table

question 27

Multiple Choice

When moving down a group (family) in the periodic table, the number of valence electrons

• A) remains constant
• B) increases by 2 then 8 then 18 then 32
• C) doubles with each move
• D) decreases regularly
• E) changes in an unpredictable manner

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Definitions:

Concentration Ratio

A measure used in economics to assess the extent of market control held by the top firms within an industry, indicating the degree of market competition.

Brand-Name Hotel

A hotel that is part of a famous or widely recognized chain, often distinguished by a well-known trademark or brand identity.

Concentration Ratio

An indicator that measures the total market share of the top firms in an industry, used to assess the level of market concentration.

Competitive

Describes a market situation where multiple sellers are vying for the same customer base, promoting innovation and price reduction.