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Most 20-year-olds outperform most 70-year-olds on video games because of age-related differences in
K
The symbol for potassium, an essential mineral and electrolyte in the human body, or alternatively, the symbol for the kelvin, a unit of temperature.
Na
The chemical symbol for Sodium, an essential element that plays a key role in nerve function and blood pressure regulation.
Subscript
A character or symbol set or printed below the normal line of text, often used in chemical formulas to indicate the number of atoms.
Non-metallic Elements
Elements that do not exhibit metallic characteristics, broadly classified into metalloids, nonmetals, and noble gases, such as carbon, sulfur, and neon.
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