The Mass of an Alpha Particle Is Approximately

question 19

Multiple Choice

The mass of an alpha particle is approximately

• A)two times the mass of a hydrogen atom and a negative charge of minus 2.
• B)four times the mass of a hydrogen atom and a positive charge twice that of an electron.
• C)six times the mass of a hydrogen atom and a negative charge of minus 1.
• D)eight times the mass of a hydrogen atom and a positive charge four times that of an electron.

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Definitions:

Mineral Uptake

The process by which plants absorb minerals from the soil through their roots.

Phloem

Complex vascular tissue of plants; its living sieve elements compose sieve tubes that distribute sugars through the plant body. Each sieve element has an associated companion cell that provides it with metabolic support.

Sugars

Carbohydrates that taste sweet and are used by the body for energy.

Plant Tissue

Groups of cells within a plant that perform specific functions, such as transport (xylem, phloem), support (collenchyma, sclerenchyma), or photosynthesis (parenchyma).