If an Element Emits One Alpha Particle,its Atomic Number Decreases

question 20

Multiple Choice

If an element emits one alpha particle,its atomic number decreases by

• A)two.
• B)one.
• C)four.
• D)zero.

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Definitions:

Flood Basalts

Vast plateau-forming volcanic eruptions that release large volumes of basaltic lava.

Fossil Record

The collection of all known fossils and their placement in rock formations and sedimentary layers, providing historical insights into life's past forms and environments.

Composite Volcano

A type of volcano built up by many layers (strata) of hardened lava, tephra, pumice, and volcanic ash.

Felsic Lava

Lava that is high in silica content, resulting in high viscosity and explosive eruptions; it is characteristic of volcanoes at continental margins.