FEMA Standardized Awareness Practice Test 2025 – Your Comprehensive All-in-One Guide to Exam Success!

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What is the main characteristic of beta particles?

They are stopped by paper

They have no charge

They pose a hazard to the eyes and skin

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei. One of their main characteristics is that they can indeed pose a hazard to the eyes and skin. When beta particles interact with biological tissue, they can cause ionization, leading to potential damage to cells and tissues. This makes them particularly concerning in terms of radiation exposure, as they can penetrate the outer layers of skin and may affect living cells beneath.

In contrast, beta particles are not as penetrating as gamma rays and certainly less so than alpha particles in terms of immediate harmful effects, but they can still cause significant damage, especially in sensitive areas such as the eyes or skin. This property is a critical consideration in radiation safety and protection protocols, emphasizing the need for appropriate shielding when working with materials that emit beta radiation.

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They are the most penetrating type of radiation

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