As One Descends Group 2A of the Periodic Table,the Number

question 59

Multiple Choice

As one descends group 2A of the periodic table,the number of valence electrons found in each element

• A)increases.
• B)decreases.
• C)remains the same.

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Definitions:

Concentration Gradient

A term describing the difference in the concentration of a substance between two areas, which can drive diffusion.

ATP

Adenosine triphosphate, a molecule that stores and transfers energy within cells, enabling various cellular processes.

Passive Transport

The movement of substances across a cell membrane without the need for energy input, typically along the concentration gradient.

Plasma Membrane

The lipid bilayer membrane surrounding cytoplasm of a cell, regulating the passage of substances in and out of the cell.