What difference is between Beta particle and negative charges?

[oem7110]

"Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei such as potassium-40. The beta particles emitted are a form of ionizing radiation also known as beta rays. "

Negative charges also contain electrons, Beta particle are high-energy, high-speed electrons.
What make beta particle harmful to human? will high-speed electrons be the main cause?
Does anyone have any suggestions?
Thanks in advance for any suggestions

[Shinjukusam]

"Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei such as potassium-40. The beta particles emitted are a form of ionizing radiation also known as beta rays. "

Negative charges also contain electrons, Beta particle are high-energy, high-speed electrons.
What make beta particle harmful to human? will high-speed electrons be the main cause?
Does anyone have any suggestions?
Thanks in advance for any suggestions

Just a question, but are you just trying to get people to do your homework for you?

[daveb]

Beta particles are electrons, they're just electrons that originate from nuclear reactions, decays, etc., so we call them beta particles instead.

[I like Serena]

They're like a lot of high speed bullets fired at your body.
Except that they don't leave wounds, and you can't see them, but they damage the body at a sub-cellular level.

[oem7110]

Thanks everyone very much for suggestions