What is the penetrating power of alpha

The penetrating power of alpha rays, beta rays, and gamma ray varies  greatly. alpha particles can be blocked by a few pieces of paper. beta particles pass through paper but are stopped by aluminum foil. gamma rays are the most difficult to stop and require concrete, lead, or other heavy shielding to block them.

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Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist