Which of the following characterizes an alpha ray? Choose all that apply. is att

Question

Which of the following characterizes an alpha ray?

Choose all that apply.

is attracted to the negatively charged plate in an electric field
is more penetrating than a gamma ray
is composed of particles
is a product of natural radioactive decay
is composed of electrons


Which of the following characterizes a gamma ray?

Choose all that apply.

is attracted to the positively charged plate in an electric field
is more penetrating than an alpha ray
is not deflected by an electric field
is less penetrating than an alpha ray
is electromagnetic radiatio

Explanation / Answer

is a product of natural radioactive decay is attracted to the negatively charged plate in an electric field Alpha "rays" are actually high speed particles. Early researchers tended to refer to any form of energetic radiation as rays, and the term is still used. An alpha particle is made up of two protons and two neutrons, all held together by the same strong nuclear force that binds the nucleus of any atom. In fact, an alpha particle really is a nucleus - it's the same as the nucleus of a common atom of helium - but it doesn't have any electrons around it, and it's traveling very fast. Alpha particles are a type of ionizing radiation .

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